College biology help please

College Biology Help Please

Answers

Answer 1

The mode of determination for cells in a developing vertebrate spinal cord is mediated by cell-to-cell signaling through Notch signaling pathway.

What is the Notch signaling pathway?

The Notch signaling pathway is a highly conserved signaling pathway that plays a crucial role in regulating cell fate decisions during embryonic development.

In the vertebrate spinal cord, Notch signaling plays a critical role in specifying the fates of neural progenitor cells (NPCs) by promoting the maintenance of NPCs and inhibiting their differentiation into neurons.

This process is mediated by the interaction between the transmembrane receptor Notch on NPCs and its ligand Delta on neighboring cells, which leads to the activation of Notch signaling pathway in the NPCs.

The downstream effectors of the Notch signaling pathway then regulate the expression of genes that control NPC maintenance and differentiation, thereby determining the fate of the NPCs.

Therefore, the mode of determination for cells in a developing vertebrate spinal cord is mediated by the Notch signaling pathway, which is a form of cell-to-cell signaling.

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Related Questions

What is an example of another pattern in nature that is caused by the
position of objects in the solar system?
A The petals of a flower
B Zebra stripes
C Day and night
D A bee's honeycomb

Answers

An example of another pattern in nature that is caused by the position of objects in the solar system is (d) A bee's honeycomb

Explaning another example of the pattern

From the question, we have the pattern to be:

Object's position in the solar systemA pattern in nature

By definition, the objects in the solar system are located in their relative location to the sun and also have impacts on the other bodies in the solar system.

The example of pattern that fits this scenario from the list of options is the (d) bee's honeycomb

This is because the bee uses the direction and angle of the sun to steer and also keep in touch with each other

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what type of skeletons do jellyfish have

Answers

Answer: they have a hydrostatic skeleton- their bodies are supported by hydrostatic pressure from a fluid-filled cavity surrounded by muscles. Technically they have no actual skeleton.

Explanation:

Question 3. Marine ecosystems ( include at least 2 citations and reference)

a) Describe a major plant of the estuary ecosystem.
b)Use the plant above to describe the main features of all estuary plants​

Answers

a) A major plant of the estuary ecosystem is Spartina alterniflora,

.

b) Estuary plants like the Spartina alterniflora, have some distinct  features that allow them to thrive in the ecosystem.

they are able to  survive in areas with high salinity levelsthey are able to withstand fluctuations in water levels and are most times submerged during high tides and exposed during low tides. They are able to survive in nutrient-poor soils by forming mutualistic relationships with bacteria.

what is the estuary ecosystem ?

Estuaries ecosystem  are  described as bodies of water where rivers meet the sea that provide homes for diverse wildlife, including popular fish species. They also support recreation, jobs, tourism, shipping, and more.

The Spartina alterniflora, is described as a perennial grass that is commonly found in salt marshes and estuaries along the Atlantic and Gulf coasts of the United States.

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15. Two Siamese and three Persian cats survive a shipwreck and are carried on driftwood to a previously uninhabited tropical island. All five cats have normal ears, but one carries the recessive allele for folded ears (his genotype is Ff). Calculate the frequencies of alleles F and f in the cat population of this island. If you assume Hardy-Weinberg equilibrium for these alleles (admittedly very improbable), about how many cats would you expect to have folded ears when the island population reaches 16,000?

Answers

To calculate the frequencies of the F and f alleles, we can use the allele frequency equation:

p + q = 1

where p is the frequency of the F allele and q is the frequency of the f allele. Since the population is small and we know the genotype of one of the cats, we can calculate the frequency of the f allele directly:

f = sqrt(q^2) = sqrt(1/5) = 0.447

Since the f allele is recessive, we can use the Hardy-Weinberg equation to calculate the frequency of the FF genotype (normal ears) as:

p^2 = 1 - 2pq - q^2 = 1 - 2(0.553)(0.447) - (0.447)^2 = 0.307

The frequency of the Ff genotype (normal ears) is given by:

2pq = 2(0.553)(0.447) = 0.494

The frequency of the ff genotype (folded ears) is:

q^2 = (0.447)^2 = 0.200

To estimate how many cats would have folded ears when the island population reaches 16,000, we can use the Hardy-Weinberg equation and assume that the population is in equilibrium:

p^2 + 2pq + q^2 = 1

The total number of cats with folded ears (ff genotype) would be expected to be:

ff = q^2 x 16,000 = 0.200 x 16,000 = 3,200

Therefore, we would expect about 3,200 cats to have folded ears in the island population when it reaches 16,000, assuming Hardy-Weinberg equilibrium. However, it is important to note that this assumption is unlikely to hold true in reality, as the small population size and genetic drift could lead to deviations from the expected frequencies.

why did the fox population take a year to decrease if the hares are their prey and decreased?

Answers

Answer:

Prey leads predators

Explanation:

if the prey goes up predators goes up

if the prey goes down predators go down this is because with a small amount of prey the predators have less to eat and die off but of there is a lot then exponential growth happens with the predators until the prey goes down creating a loop

8. The following is an example of what type of mutation?
DNA
ATG

mRNA
UAC

tyrosine (normal protein)
normal
a. An inversion mutation
b. A translocation mutation
c. A point mutation
d. A duplicate mutation

Answers

The given mutation is an example of a point mutation.

The correct option is C.

What is a point mutation?

A point mutation is a type of genetic mutation that involves a change in a single nucleotide base within DNA.

This type of mutation can occur during DNA replication or due to environmental factors, such as exposure to radiation or certain chemicals.

Point mutations can have a variety of effects on the resulting protein that is produced from the altered DNA sequence. Some point mutations may have no effect on the protein, while others can lead to the production of a non-functional protein or a protein with altered function. Depending on the location and nature of the mutation, it may have no effect on the organism, be harmful, or even beneficial.

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Which is the most common theme among several of the theories O water O volcanic energy O electrical energy Ospace​

Answers

The most common theme among several of the theories listed is energy. Volcanic energy and electrical energy are both forms of energy, while water and space are not forms of energy but can be associated with energy in various ways.  Hence options B and C are correct.

For example, water is often used to generate hydroelectric power, which is a form of energy. Space, on the other hand, is often studied in the context of astrophysics and the study of energy in the universe, such as dark matter and dark energy.

Therefore, while all of the options listed may be important and relevant in different fields of study, energy is a common theme that ties together several theories across different disciplines.

Hence options B and C are correct.

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Write two sentences to describe one similarity and one difference between personal and national budgets
(here's the passage if needed. i know its not much)

Answers

The similarity in the two is that the budget limits an amount of money given to prevent debt and an increase in taxes. The difference is that the personal budget is for your own use as in if you went to buy a car with a budget of $250k, a national budgets is more for the military/federal jobs.

Which of the following is not a defining element of culture?
A. Information shared among a population
B. Written symbols
OC. Information that is internalized
D. Information that is socially transmitted

Answers

B. Written symbols is not a defining element of culture as not all cultures have a written language or symbols. However, information shared among a population, information that is internalized, and information that is socially transmitted are all essential components of culture.

Hope that helps! Have a nice day! <3

Asiatic Cheetahs currently live in a much smaller areas than they once did because of human mpact. Scientist estimate that the total Asiatic Cheetah population is only about 100 adults.
Vhich of the following best predicts the result of having a small and isolated Asiatic Cheetah population?

Answers

Answer:

Explanation:

A small and isolated Asiatic Cheetah population is likely to face several challenges, including:

Genetic inbreeding: With a limited number of individuals in the population, there is a higher chance of genetic inbreeding. This can lead to reduced genetic diversity and an increased risk of genetic defects and diseases.

Limited gene flow: When a population is isolated, there is limited gene flow between different groups of animals. This can lead to reduced genetic diversity and increased inbreeding.

Vulnerability to environmental and human pressures: A small population is more vulnerable to environmental pressures such as climate change, natural disasters, and human impacts like habitat loss, poaching, and hunting. With a limited number of individuals, the loss of even a few individuals can have a significant impact on the population.

Reduced adaptability: With a limited number of individuals and limited genetic diversity, the population may be less able to adapt to changing environmental conditions or to cope with new threats.

Therefore, the best prediction of a small and isolated Asiatic Cheetah population is that it is at risk of declining further and may eventually face extinction if adequate conservation measures are not taken to protect and expand their habitat, prevent poaching and hunting, and promote genetic diversity through breeding programs.

In DNA recombination, what is created when the DNA is opened up at the restriction site?
Responses

A double-stranded DNAdouble-stranded DNA

B RNARNA

C sticky ends

Answers

Answer:

C. Sticky ends.

Explanation:

C. Sticky ends.

When the DNA is opened up at the restriction site during DNA recombination, the enzyme creates a double-stranded cut leaving short, single-stranded overhangs called sticky ends. These sticky ends can base pair with complementary sticky ends generated by the same restriction enzyme on another DNA molecule, allowing the two DNA molecules to be joined together. This process is used in DNA cloning and other genetic engineering techniques.

Please help me with this
"Write a background information about fresh water fish pond" (include citation)​

Answers

When constructing a freshwater fish pond, several factors must be taken into consideration, including the size and shape of the pond, water quality, and the type of fish species to be raised.

What are the features of a freshwater fish pond?

A freshwater fish pond is a man-made body of water that is designed to raise and grow freshwater fish species for commercial or recreational purposes.

These ponds can range in size from small backyard ponds to large commercial operations spanning several acres.

One of the benefits of freshwater fish ponds is their ability to provide a consistent supply of fresh, high-quality fish for consumption. Additionally, these ponds can be used for recreational purposes such as fishing or as an aesthetic addition to a property.

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8.
gases in the atmosphere,
including
maintain surface air temperature.
anola. Condensed, nitrogen
b. Greenhouse, water vapor
trap radiated heat and help
c. Flammable, carbon dioxide
d. Inert, oxygen

Answers

Answer:

Explanation:b cause its a non verbal. answer for the asset.

Please help !!!!!!!!!!!

Answers

Answer:

1) Weathering, Erosion, Disposition

2) Physical weathering is the breakdown of large rocks into fragments by physical forces; the chemical composition of the rock is not changed. Chemical weathering is the breakdown of rock by chemical reactions; the chemical composition is changed.

3) The four forces of erosion are water, wind, gravity, and glaciers.

4) Because the velocity of the river slows down a great deal when it reaches the large body of water, the sediment that the river was carrying is deposited along the mouth of the large body of water.

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Abrasion: Abrasion is the breaking down and wearing away of rock material by the mechanical action of another rock. Three agents of physical weathering that cause abrasion are moving water, wind, and gravity. Also, rocks suspended in thence of a glacier can cause abrasion of other rocks on Earth's surface. This would be a prime example of physical weathering, or mechanical weathering.

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Acid Precipitation: Acid rain causes less erosion than normal rainwater does. Rainwater can break down rocks by dissolving minerals in the rocks. Acid rain is rainwater that is more acidic than normal rainwater. Acid rain can also dissolve the minerals in rocks faster than normal rainwater can. This is chemical weathering.

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Animal actions: Animal and plant mobility is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the fracture to expand. A rabbit may also burrow into a crack in a rock, making it wider and eventually separating the rock. This is an example of physical weathering.

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Ice wedging: Ice wedging ,sometimes known as frost wedging ,can also cause rocks to break apart. Ice wedging causes cracks in rocks to expand as water seeps in and the water freezes and expands opening the crack further. Rocks formed under pressure deep within earth can become exposed at the surface. This is physical weathering

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Oxidation: Oxidation is another kind of chemical weathering. It occurs when oxygen from air dissolves in water and combines with chemicals in the rocks to form oxides. if the rock contains a lot of iron, then oxidation produces a brown material called iron oxide. This looks like rust on the rock.

What is the difference between weathering erosion and deposition?

Weathering is the chemical and mechanical breakdown of exposed rock. The chemical changes alter the minerals and make them softer, and mechanical weathering physically breaks rock into smaller and smaller pieces.

Erosion is the REMOVAL of those chemically and mechanically softer and broken pieces of rock from their original locations, by gravity, water, ice or wind. Erosion is transport (and as a result, fresh unaltered rock is exposed to wind, water and weather, and THAT becomes weathered in turn). The material being transported is ‘sediment’: sand, silt, mud and gravel.

Deposition is when the weathered and eroded (transported) material is dropped and settles down elsewhere, forming a ‘deposit’ of transported rock material.

If this deposit remains undisturbed long enough, and is buried by enough arriving material, it will eventually go through compaction and chemical reactions forming cement between the grains - thus resulting in a brand new, sedimentary rock.

Weathering, erosion, transport, deposition, compaction and cementation are part of the ‘rock cycle’.

How can the complete rock cycle be described?

Let’s start with basalt that form at mid ocean spreading centers. At mid ocean spreading centers rock material from the earth’s mantle continuously melts due to continuous decreasing in pressure from the oceanic crust spreading at this point. The molten rock quickly cools at the earth’s surface and forms rock known as basalt that makes up the oceanic crust all over the world. The newly produced oceanic crust rock slowly moves towards a boundary with a continental crust where the oceanic crust subducts beneath the continental crust due to the oceanic crust having a higher density than the continental crust. This is where things get a bit more interesting.

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which set of terms best describes a cell membrane

Answers

The cell membrane can be described using the following terms:

1-Phospholipid bilayer: The cell membrane is composed of a double layer of phospholipid molecules arranged with their hydrophilic (water-loving) heads facing outward and their hydrophobic (water-repelling) tails facing inward.

2-Selectively permeable: The cell membrane is selectively permeable, meaning it allows the passage of certain substances while restricting the movement of others. This property helps maintain the cell's internal environment and regulate the exchange of molecules with the external environment.

3-Fluid mosaic model: The cell membrane is described by the fluid mosaic model, which suggests that it is a dynamic structure composed of various components, including phospholipids, proteins, carbohydrates, and cholesterol. These components are not fixed in place but rather move and interact within the membrane.

4-Barrier: The cell membrane acts as a barrier, separating the cell's internal environment from the external environment. It helps protect the cell's contents and regulates the movement of molecules, ions, and other substances in and out of the cell.

5-Receptor sites: The cell membrane contains receptor sites that can recognize and bind to specific molecules or signals, such as hormones or neurotransmitters. This allows the cell to respond to external stimuli and initiate various cellular processes.

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Answers

The source to sink active transport by plants includes:

Leaves (source) ---> Roots (sink)Leaves (source) ---> Fruits (sink)

What is active transport?

Active transport is the movement or transport of molecules by living organisms against their concentration with the expenditure of energy in the form of ATP.

Active transport is used to transport organic compounds into sieve tubes. This process involves transporting organic compounds such as sugars from the source cell into the companion cell, and then from the companion cell into the sieve tube.

A simplified model of this process is as follows:

Source cell → Companion cell → Sieve tube

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Describe how Newton's 1st Law of Motion is used on a daily basis at school?

Answers

Answer: Newton’s 1st Law if Motion can be used on daily basis at school by playing soccer. The Law states that an object at rest will remain at rest and an object in motion will remain in motion. Having this in mind, think of when you kick a soccer ball. The ball goes in the same direction you kicked it from. Since force was applied to the ball, it went farther away from you, and only stopped when an outside force blocked it from moving any further. This shows the part of Newton’s Law of “an object in motion remains in motion”. Now, think of a soccer ball that had no outside force (kicking, touching, etc.) on it. It will remain at rest unless a force such as kicking or touching is involved. This shows the part of Newton’s 1st Law “an object will remain at rest, unless acted upon an external force.” Hope that helped!

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Look at the Punnett square above. Mom and dad are both heterozygous - which means they both have 1 dominant gene and 1 recessive gene.

What is the phenotype ratio (physical trait) for their offspring?

Answers

Dominant Gene: H - Purple Fur

Recessive Gene: h - White Fur

Genotypic Ratio: 1:2:1

Phenotypic Ratio: 3:1 (purple fur : white fur)

The laws of Mendel are three fundamental principles of inheritance that were discovered and described by the scientist Gregor Mendel in the 19th century. These laws describe how traits are passed down from parent to offspring and provide the foundation for our understanding of genetics.

The three laws of Mendel are:

The Law of Segregation: This law states that during the formation of gametes (sperm and egg cells), the two copies of each hereditary factor (allele) segregate so that offspring inherit one allele from each parent. This is also known as the principle of dominance, where one allele can be dominant over the other and determine the observable trait.

The Law of Independent Assortment: This law states that during gamete formation, the segregation of one pair of alleles is independent of the segregation of other pairs of alleles. This means that the inheritance of one trait is not influenced by the inheritance of another trait.

The Law of Dominance: This law states that when two different alleles for a given trait are present in an individual, one allele (the dominant allele) is expressed and the other allele (the recessive allele) is not expressed in the phenotype of the organism.

These laws help to explain the patterns of inheritance observed in sexual reproduction and have practical applications in the field of genetics, such as in predicting the likelihood of inherited genetic disorders and in breeding programs for plants and animals.

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Using the information from the reading, create a biomass diagram using lions/buffaloes/grasses what do you think it would look like based on what you know about the 10% rule?

Answers

Answer: It depends on the reading, but it should show the grass with the most energy, the buffalo with 90% less energy than the grass, and the lions with 90% less energy than the buffalo

Explanation: The ten percent rule states that, when energy is transferred from one organism to another, only 10% of the energy is conserved. The other 90% is lost as heat. So, heterotrophs (organisms that produce their own energy) like the grass would have the most energy, the buffalo would only receive 10% of that, and the lions only 10% of the buffalos' energy.

What are the environmental and societal benefits of cultured meat production compared to traditional meat production?

Answers

Answer:

Cultivated meat water usage can be reduced by 82%-96% depending on the product. Cultured meat production uses considerably fewer water resources compared to conventional meat production. Research has shown that agriculture is responsible for 92% of our water usage, and that.

Explanation:

The plant shown in the photo is a vine. It can grow where
there are many other plants and plenty of water year-
round.
alla

Answers

C) The type of ecosystem that is more likely to have a large number of vines that can grow where there are many other plants and plenty of water year-round is a rainforest.

Rainforests are among the most biologically different ecosystems on Earth, home to millions of species of  shops and  creatures,  numerous of which are  set up nowhere differently. Vines are an important  element of the rainforest ecosystem, serving as a source of food,  sanctum, and  niche for  numerous  creatures.

Some  exemplifications of common rainforest vines include lianas, which can climb up to the  cover of trees and  give a ground for  creatures to cross from one tree to another, and epiphytes, which grow on trees and can  give a home for insects,  catcalls, and other  brutes.   still, rainforests are under  trouble from deforestation,  niche destruction, and climate change.

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where is mitochondria found abundantly between sperms and ova.Explain​

Answers

Mitochondria are found abundantly in the midpiece of the sperm. The midpiece is located just behind the head of the sperm and contains many mitochondria that provide energy for the sperm to swim towards the egg. The egg, on the other hand, contains mitochondria throughout its cytoplasm. This is because the egg needs a large amount of energy to support the early stages of embryonic development, before the zygote can begin to produce its own energy.

During fertilization, the sperm and egg combine to form a zygote. The mitochondria from the sperm are typically destroyed after fertilization, so the zygote relies solely on the mitochondria from the egg for energy production. This is why mitochondrial DNA is inherited solely from the mother in most animals, including humans.

Click all that is true. The functions of proteins are:


transport important things in your body


build the structures of your body


enzymes to make chemical reactions go faster


send messages to cells


make antibodies to fight viruses

Answers

Answers:

2. build the structures of your body

3. enzymes to make chemical reactions go faster

5. make antibodies to fight viruses

The functions of proteins are:

transport important things in your body build the structures of your body enzymes to make chemical reactions go fastersend messages to cellsmake antibodies to fight viruses

What are the properties of protein?

Proteins are organic macromolecules made up of amino acids joined by peptide bonds. They have a complex and diverse structure and play many essential roles in the body. Some of the properties of proteins include:

Structural diversity: Proteins have a highly diverse structure, which is important for their many functions.

Amino acid composition: Proteins are made up of different combinations of 20 different amino acids.

Size: Proteins can vary greatly in size, from small peptides to large multi-subunit complexes.

Shape: Proteins can have complex 3D shapes that are critical to their function.

Solubility: Proteins can be either soluble or insoluble in water, depending on their structure and composition.

Stability: Proteins can be stable or unstable under certain conditions, such as changes in temperature, pH, or salt concentration.

Function: Proteins have a wide range of functions in the body, including structural support, enzyme catalysis, transport, and communication.

Denaturation: Proteins can lose their structure and function when exposed to certain physical or chemical conditions, a process known as denaturation.

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Which of the following is a benefit of direct air capture technology?
O Moves carbon into the
atmosphere

O Provide carbon dioxide to crops in greenhouses

O Releasing carbon dioxide over the ozone layer

OUsing new fossil fuels for energy

Answers

The benefit of direct air capture technology is the ability to remove carbon dioxide from the atmosphere.

What does carbon dioxide do to the atmosphere?It causes a greater incidence of solar rays on the surface of the planet.It corrupts the ozone layer.

Carbon dioxide is absorbed by plants during the photosynthesis process and this is important to keep the atmosphere free of this compound, but with the advancement of the use of fossil energies and intense deforestation, this compound accumulates in the atmosphere and causes various environmental problems, for this reason, using direct air capture technology can be beneficial to remove carbon dioxide from the atmosphere.

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When body temp increases it causes
metabolic reactions to increase, which
releases heat that further increases body
temp. This is an example of
a. Homeostasis
b. Positive feedback
c. Negative feedback
d. All of the above

Answers

When body temp increases it causes metabolic reactions to increase, which releases heat that further increases body temp. This is an example of positive feedback.

Positive feedback is a process in which a change in a system leads to an amplified or increased response in the same direction as the initial change, rather than stabilizing the system as negative feedback does. In positive feedback, the output enhances or reinforces the original stimulus, leading to a cascading effect of the process, which can be beneficial or detrimental to the system depending on the context.

Positive feedback loops can be found in various biological processes, such as blood clotting, childbirth, and action potentials in neurons, and can also be observed in non-biological systems, such as climate change and population growth.

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bonding involves the valence shell electrons only, it is only necessary to illustrate those outer electrons.

Element
Group #
# of valence e-
Lewis dot structures
Calcium








Carbon








Fluorine








Oxygen








Neon








Hydrogen








Aluminum

Answers

Explanation:

porque los niños no van a las escuelas

Write a scientific argument to Alex Young that addresses the question: What caused the stickleback population to have less armor and become faster?

Answers

The stickleback population's reduced armor and increased speed can is due to natural selection because the sticklebacks with less armor and greater speed were better adapted to their environment resulting in greater survival rates and higher reproductive success.

What is natural selection?

Natural selection is the variation in individual survival and reproduction brought on by phenotypic variances.

Environment-adapted organisms have a higher chance of surviving and dispersing the genes that contributed to their success. Over time, this process leads to the evolution and divergence of species.

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pls help (earth science)

Answers

The sedimentary bedrock in both regions originally formed as (1) horizontal layers

It should be noted that layer A is the oldest and layer D is the youngest.

The recently formed rock is siltstone.

How to explain the rocks

The principle of superposition can be utilized to determine the sequential ages of layers. According to this concept, in any succession of unaltered sedimentary rock strata, the oldest layer is situated at the bottom, while the youngest layer rests at the apex.

From investigation of the representation, layer A can be observed to lie at the bottom and layer D positioned at its peak; with layers B and C crammed between. Reciprocally, layer A can be concluded as being the eldest, whilst layer D being the most modernizing. The response, thusly, must be option (1) A.

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Consider logistic model, = () = (1 − ) . Find the equilibrium points and the linearization about each for the logistic model. Hence determine the stability of each of these equilibrium points.

Answers

There are two points of equilibrium: N = 0 and N = K.

It is stable at the equilibrium point N = K and N = 0 is unstable.

How to determine equilibrium points?

The logistic model is given by:

dN/dt = rN(1 - N/K)

where N = population size, t = time, r = intrinsic growth rate, and K = carrying capacity.

To find the equilibrium points, we set dN/dt = 0 and solve for N:

rN(1 - N/K) = 0

This equation has two solutions: N = 0 and N = K. Therefore, the equilibrium points are N = 0 and N = K.

To find the linearization about N = 0, take the derivative of dN/dt with respect to N and evaluate it at N = 0:

f(N) = rN(1 - N/K)

df/dN = r(1 - 2N/K)

df/dN|N=0 = r

The linearization about N = 0 is therefore:

dN/dt = rN

This is a simple exponential growth model, and the equilibrium point N = 0 is unstable.

To find the linearization about N = K, take the derivative of dN/dt with respect to N and evaluate it at N = K:

f(N) = rN(1 - N/K)

df/dN = r(1 - 2N/K)

f/dN|N=K = -r

The linearization about N = K is therefore:

dN/dt = rN(K - N)/K

This is a simple logistic growth model, and the equilibrium point N = K is stable.

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4. If an atom has five protons, how do you know that it has five electrons as well?​

Answers

Answer:

Atoms are neutral in electrical charge because they have the same number of negative electrons as positive protons (Table 4.5. 1). Therefore, the atomic number of an atom also tells you how many electrons the atom has.

Explanation:

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A 10% solution of fertilizer is to be mixed with a 60% solution of fertilizer in order to get 125 gallons of a 50% solution. How many gallons of the 10% solution and 60% solution should be mixed? Hello Im going to do a Presentation about learning strategies method, can you please tell me what kind of activities to do for my classroom? Graph and solve y=1/2x-6 and y=1/2x+2 The anthropological definition of cultural relativism requires that we make an effort to _______ the practices of other cultures. A. Approve b. Judge c. Understand d. Excuse 5. Vanessa and Nancy plan to make a birthday cake. Working together, Vanessa and Nancy can complete thebirthday cake in 2 hours. If Nancy works alone, it will take her 3 times as long as it would take Vanessa tocomplete the birthday cake. The equation below represents this situation.2 2-+-=13xHow many hours would it take Nancy to complete the birthday cake if she worked alone?X 1. What role did protesting have on the success of the Civil Rights movement?A. By protesting the inequalities within the military, public pressure led to the creation of moreopportunities for African-Americans in the Armed Services.B. Protesting led to an increase in political activism which resulted in a rise of minorities beingelected to federal offices in order to change the status quo.C. By protesting, the discrimination African Americans experienced was shared with a wideraudience which increased support for securing equal rights.D. Protesting challenged traditional beliefs about equality and created a platform for minorities tolobby Congress to increase funding for housing for the poor. Biofuels are renewable resources because they are made from corn or sugar cane. in what ways are biofuels and fossil fuels similar? What conditions would are more hazardous to the coast, a hurricane surge during high tide or a tsunami. Why one would be more hazardous than the other or both are similarly destructive? Find the radius of the circle with equation x + y = 19r=0Submit Answer NEED ANSWERS ASAPPeter creates a square pyramidmodel for History class. Thebase of the pyramid has anarea of 20 square inches. Eachtriangle has an area of 10square inches. If Peter wants tocover the entire pyramid withgold paper, how much paperwill he need?WILL GIVE BRAINLIEST TO THE CORRECT ANSWER andy can run 20 miles in 6 hours. how much miles can he run in 1 hour. Out of 300 applicants for a job, 134 are male and 40 are male and have a graduate degree. You were asked to find the probability that a randomly chosen applicant has a graduate degree, given that they are male. Gianah lives in Milton. She bought a bus ticket to travel to her cousin's house in Orlando. She gets on the bus in Milton. The distance between the two cities is 695 kilometers and the bus drives 70 kilometers per hour. If the bus is kilometers away from Orlando, which of the following equations represents the hours, h, the bus has traveled? Question 10 > Determine whether the integral is divergent or convergent. If it is convergent, evaluate it. If not, state your answer as "DNE" 4 ( 1 -dz 22 +1 00 Solve systems of Equation by substitution method3(x-2) + y = 74x - 3(y-1) = 16 Find the volume of the cone in cubic feet. Use 3. 14 for and round your answer to the nearest tenth. (1 m 3. 2808 ft) 135,648 ft3 3,843. 8 ft3 4,790,189. 2 ft3 444,925. 4 ft3 Can you help me with this please A textbook company will ship a box of textbooks to college students. The weight of the box in pounds can be determined by the function w(x) = 7. 5x + 2, where x is the number of textbooks in the box. The company requires a student to order at least 2 books but not more than 6 books. What is the range of the function for this situation? *A. 2 x 6B. 17 y 47C. {17, 24. 5, 32, 39. 5, 47}D. {2, 3, 4, 5, 6} Identify each bond between the component atoms as sigma bonds (single bonds), one sigma bond and one pi bond (double bonds), or one sigma bond and two pi bonds (triple bonds) Hw3/ the lab flume has dimensions 7 m length, 0. 4 m width, and 0. 8 m depth, the head of water over a gate is 0. 3 m. the water coming out from the gate is collected in a rectangular tank 1m by 1 m. the rise of the water level in this tank is 90 cm in 15 sec. find the coefficient of discharge. if the height opening is 0. 1 m