Answer:
D) aerobic respiration
Explanation:
What direction
does foul weather normally come from
Answer:
west
Explanation:
Which of the following represents a polar covalent compound?
H₂O
Cl₂
O2
NaCl
Answer:
NaCl
Explanation:
Which organelle is responsible for giving plants colors other than green?
vacuole
chloroplast
mitochondria
lysosome
DNA is organized into structures called
microtubules
chromosomes
thylakoid stacks
nuclei
Answer:
chloroplast
chromosome
Explanation:
same
Answer:
Correct answer is vacuole.
Explanation:
Vacuoles containe anthocyanin pigment which makes vacuoles to appear in different colour such as red, blue and purple.
DNA is organized into structures called chromosomes.
Chromosome is made up of DNA tightly coiled many times around protein histone.
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Explain the propagation of electrical impulses along a neuron including the role of myelin
Nerve impulses are signals that are transmitted along nerve fibers of the body.
Nerve impulses are electrical impulses. They are generated in response to stimuli.
These electrical impulses create:
action potentials as waves of depolarization that moves along the axons.The axons contain voltage-gated ion channels that are either opened or closed by depolarization (which is the opening of ion channels leading to changes in membrane potential)
Depolarization further causes other channels to open and close thus spreading across the entire length of the axon and into another nerve cell (neuron).
Myelin sheaths act as buffers and through salt conduction help increase the speed of electrical impulses through the neurons. Not every nerve cell is insulated with a myelin sheath.
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a team of scientists has consistently gotten the same unexpected results from a set of experiments.Which of the following helps the scientist ensure the reliability of the results?
a. publican of the results, including a brief description of the scientific methods
b. discussion of the scientific method with friends and family
c. peer review of the scientific methods and data analysis
d. Removal of any data that are not consistent with the other results
Peer review of the scientific methods and data analysis will ensure reliability of the results.
What is Reliability?This involves a scientist getting the same results under the same type of conditions in this scenario.
Peer review involves the experiment being done by other scientists to ascertain if the data gotten are reproducible which will determine its reliability and accuracy.
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Which animal had to eat the most frequently in order to maintain its energy level
Answer:
A. Rattlesnake
B. Small fish
C. Hummingbird
D. Kangaroo rat
Explanation:
These animals live in a very harsh climatic region so the need fulfill their hunger properly according to the difficulties and problems.
What is the relationship between velocity and speed
Answer:
Relationship btw Speed and VelocityExplanation:
Speed:
speed can only be positive.
Velocity:
Velocity can be positive, zero and negative in magnitude.
Mention four benefits of rearing the farm animal mentioned in a(i)..-
What is the most appropriate system of keeping the farm animal:....
The four benefits of rearing the farm animal mentioned area the Good pleasant and amount of milk that may be produced and it could upload to the earnings of the farmer.
What types of animal systems are there?According to FAO, there are 3 predominant farm animal control systems: combined manufacturing. in-depth farming systems “landless” enormous manufacturing gadget.
A farming gadget is described as a complicated interrelated matrix of soil, plants , animals, implements, power, labor, capital and different inputs managed in component through farming households and encouraged to various stages through political, economic, institutional and social forces that perform at many levels (Dixon et al., 2001).Benefits of farm animals farming: 1) Good pleasant and amount of milk may be produced and it could upload to the earnings of the farmer. 2) Draught labor animals may be produced and utilized in agricultural work. 3) New range which can be proof against illnesses may be produced through crossing types with the preferred traits.Read more about the farm :
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Natural selection results in ______. Group of answer choices a decrease in the size of a population. an increase in the size of a population. increased genetic variation. offspring adapted to their current environment
Answer:
increase in genetic variation
What does the light red layer between the white lumen and blue lamina propria consist of?
The light red layer between the white lumen and blue lamina propria consist of epithelium cells.
What is a lamina propria?
A lamina propria is a type of connective tissue that is present and found under the thin layer of tissues covering a mucous membrane.
Characteristics of the lamina propriaIt is a very large layer of connective tissueIt divides the innermost layer from a layer of smooth muscle tissue.it is a light red layer barrier located between the white lumen and blue lamina.It is made up of epithelium cells.It is also found in the respiratory tract, the Gastrointestinal tract, and the urogenital tract.Thus, the light red layer between the white lumen and blue lamina propria consist of epithelium cells.
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EASYYYYYYYY
a. Worldwide, what percentage of human water usage does industry account for?
b. What percentage in the US of human water usage does industry account for?
The percentage of human water usage that the industry account for is 19% while the percentage does industry account for in the US for human water usage is = 5%
What is human water usage?Human water usage is the water used by individuals for direct purposes such as bathing, drinking, and cooking.
The percentage of human water usage that the industry account for is 19% while the percentage does industry account for in the US for human water usage is = 5%
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Specialised Plant cells are used to absorb water from the soil.
Explain how the structure of these specialised cells are adapted for its function.
(I need this to be slightly unprofessional,so please do not copy off a website,I also need this quick)
Answer:
The Roots have what are known as Root Hair Cells on their surface, these Root Hair Cells increase the Surface Area of the Root allowing a more efficient absorption of Water and Mineral Ions. Found within the cells is a large Vacuole. the role of any Vacuole is to hold the nutrients (mainly salts and sugars) needed for the cell to carry out its multiple functions. So, with this Vacuole being large, it allows more of these nutrients to be held for the Root.
Which characteristic of life is being shown by the following image?
O Organisms react to stimuli
O Organisms grow and develop
O Organisms can adapt
O Organisms are made up of cells
O Organisms can use and obtain energy
Answer:
d
Explanation:
organisms are made up of cells
All of these are steps in the lytic cycle of a temperate bacteriophage. Which happens second?
The second steps in the lytic cycle of a temperate bacteriophage is the entry.
What are the steps in the lytic cycle of a bacteriophage?The lytic cycle has several phases: Absorption is the phase in which the recognition and attachment of the virus to the cell occurs. Viruses are very specific to their host cells. The host is endowed with chemicals capable of allowing the virus to detect it and attach itself to the membrane.
So, the 4 stages of the lytic cycle is attachment, penetration, biosynthesis, maturation, and release.
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What are the molecules that make up the cytoskeleton?
The molecules that make up the cytoskeleton are microtubules, intermediate filaments and microfilaments.
What is the cytoskeleton?The cytoskeleton is a network of proteins inside the cell that provides structural support.
The main proteins of the cytoskeleton are composed of subunits that may be added or removed according to the cell function.
In conclusion, the molecules that make up the cytoskeleton are microtubules, intermediate filaments and microfilaments.
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Corn is a monocot. According to the table above, does a corn seed have one or two seed leaves?
Answer:
One
Explanation:
Corn are monocotyledon plant...They have only one shoot when they germinate.
histones are _____ that are usually associated with _____.
Histones are basic proteins that are usually associated with deoxyribonucleic acid (DNA).
What are Histones?Histones can be defined as the basic proteins that are combined together with deoxyribonucleic acid to form the structure called Chromosome.
The main function of the histones is to provide structural support to the chromosome.
Therefore, Histones are basic proteins that are usually associated with deoxyribonucleic acid (DNA).
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why do we not see other components of cell? are they absent?
Answer:
They are microscopic (small) and they are protected by the outer wall/membrane
Explanation:
Black eyes are dominant to orange eyes, and green skin is dominant to white skin. A male MendAlien with black eyes and green skin, has a parent with orange eyes and white skin. A female MendAlien with orange eyes and white skin. If these male and female MendAliens were to mate, the predicted phenotypic ratio of their offspring would be _____.
The phenotypic ratio of their offspring would be 1/4 each for black eyes/green skin, black eyes/white skin, orange eyes/green skin, and orange eyes/white skin respectively.
Dihybrid crossingThe male would be heterozygous since he has a parent that is homzygous recessive.
Assuming that eye color is A/a and skin color is B/b.
The genotype of the male would be: AaBb
The genotype of the female would be: aabb
AaBb x aabb
Progeny
A_B_ = Black eyes, green skin = 1/4
aaB_ = orange eyes, green skin = 1/4
A_abb = black eyes, white skin = 1/4
aabb = 1orange eyes, white skin = /4
See the attached image for the Punnet's square analysis.
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m
When people share a common resource
without agreement or regulation of its
use,
A. it is likely to become overused
B. it will last forever
C. it will never be overused
D. the possibilities are unknown
Describe how the components of the chloroplast are arranged and integrated to
facilitate photosynthesis
The components of the chloroplast are arranged and integrated to facilitate photosynthesis is called chlorophyll.
What is the importance of chlorophyll?
Chlorophyll a absorbs dark blue wavelengths and dark red wavelengths and Chlorophyll b absorbs a light blue wavelength and a red wavelength. Chlorophyll has two main functions the biosynthesis of sugars and the production of oxygen.
Chlorophyll is the pigment responsible for capturing light and ensuring that photosynthetic organisms can produce their food through the process of photosynthesis.
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What about Earth allows it to maintain bodies of water?
OA. Weak gravity and high temperatures
OB. Moderate temperatures and strong gravity
C. Strong magnetic fields and lunar tides OD. Comet crashes and mountains
Answer:
Letter C is correct
Explanation:
Earth's moderate temperatures allow water to exist in all three states: solid, liquid, and gas. Its strong gravity keeps the water from escaping into space. Hence option B is correct.
The other options are not correct. Weak gravity would not be able to hold water on Earth, and high temperatures would cause the water to evaporate.
Strong magnetic fields and lunar tides do play a role in shaping Earth's oceans, but they are not the primary factors that allow Earth to maintain bodies of water.
Here are some other factors that help to maintain bodies of water on Earth:
The Earth's atmosphere, which traps heat and prevents the water from freezing.
The Earth's rotation creates the Coriolis force, which helps to distribute the water evenly around the planet.
The Earth's tilt, which causes the seasons, affects the amount of sunlight that reaches different parts of the planet and affects the temperature of the water.
Therefore, option B) Moderate temperatures and strong gravity are correct.
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What do felicitated the fusion an active transport have in common
The felicitated the fusion and active transport have in common both transport proteins with energy expenditure.
What do active transport and facilitated diffusion have in common?The Facilitated Diffusion it occurs with the aid of a carrier protein (permease), which binds to the substance and transports it into or out of the cell and Active Transport is expended as it moves against a concentration gradient.
In this case, the two exchange the concentration inside the cell to the outside and transport only proteins with energy expenditure.
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Match each step of the scientific method with its description.
construct a hypothesis
communicate the results
test the hypothesis
make observations
analyze the results and
make a conclusion
ask questions
Bread, when kept in the open for a
long time, shows the presence of mold.
arrowRight
What causes mold growth on bread?
arrowRight
Changes in temperature may affect
the growth of mold on bread.
arrowRight
Keep the bread in different locations,
changing the temperature at each location.
arrowRight
Increased temperature leads to the
growth of mold.
arrowRight
Make a presentation of the data, and
explain it to the class.
arrowRight
1- C ( this is an assumption; a hypothesis is always based on an assumption.
2- F ( this states to share the results with other classmates).
3- D (this is a description of an experiment you could conduct; you test a hypothesis (usually) by conducting an experiment.
4- A (this is something you could observe during the experiment, therefore it is an observation).
5- E (this sentence is a conclusion).
6- B (This is an actual question)
What is the hypothesis?The hypothesis of most interest to the researcher is the alternative hypothesis.
For example: When we are talking about statistics, the alternative hypothesis is the one that proposes a new model or a new theory, in contrast to an old one, as in the case of the null hypothesis. Oftentimes alternative hypothesis has to be constant with the original research hypothesis in that it stems from previous research and investigation. In simple terms, the alternative hypothesis is in opposition or contrary to the null hypothesis.
Thus, this could be the answer.
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The stage of the cell cycle during which the cytoplasm divides to form two cells is called:.
Savannah wraps some gifts and then brings them to the post office where they are delivered to people in different parts of the country. Which organelle is Savannah most like?
Answer: The Golgi body
Explanation: it is most known to label and send packages
Using complete sentences, explain how large-scale agriculture leads to increased atmospheric co2.
Large-scale agriculture will definitely lead to increased atmospheric carbon dioxide. This is due to the attribute that the amount of oxygen released by agricultural plants increases and filters the air that contains toxic gases like carbon monoxide and vamoosing it with CO2.
What is Atmospheric CO2?Atmospheric CO2 may be defined as the amount and quantity of carbon dioxide that is generally present in the atmosphere by the activity of burning fossil fuels, automobile emissions, etc.
It is true that large-scale agricultural activities purify the atmosphere by eliminating all poisonous gases like CO, SO2, etc. This activity is generally performed by the overproduction of carbon dioxide through agricultural plants.
Therefore, it is well described above.
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What is the function of lacI in the regulation of the lac operon? It is the operator that mediates the transcription of the structural genes. It is a structural gene that encodes permease. It encodes a repressor that, in the absence of lactose, binds to the lac operator and blocks expression of the structural genes. It is the promoter that mediates the transcription of the operon. It encodes a repressor that, in the presence of lactose, binds to the lac operator and blocks expression of the structural genes.
The function of lacI in the regulation of the lac operon is that it encodes a repressor that, in the absence of lactose, binds to the lac operator and blocks the expression of the structural genes. Thus, the correct option is C.
What is Lac operon?Lac operon may be defined as an operon or a set of genes with a single promoter that encodes genes for the carrier and metabolism of lactose in E. coli and other bacterial species.
The concept of the operon was first proposed by Jacob and Monod in 1961.
The lacI gene product, the lac repressor, is expressed from a separate transcriptional unit upstream from the operator.
When lactose is absent, the lacI gene regulates and produces repressor mRNA which translates repression.
Therefore, it is well described above.
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Weather and natural disasters act independently of a population's density. These factors are called density ____________________ factors.
Answerthese and are called density independent factors
Explanation:
Weather and natural disasters act independently of a population's density. These factors are called density-independent factors.
Density-independent factors are environmental influences that affect populations irrespective of their size or density.
Weather events, such as hurricanes, floods, and droughts, as well as natural disasters like earthquakes and wildfires, can impact populations regardless of their abundance.
These factors can cause significant disruptions to ecosystems, alter resource availability, and influence the survival and reproduction of organisms.
Unlike density-dependent factors, which are influenced by the size of the population and can lead to competition for resources, density-independent factors exert their effects regardless of population size, making them important drivers of ecological dynamics and population fluctuations.
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The scale below shows the pH levels of various liquids. Which of the following substances is a strong acid?
Answer:
Soda
Explanation:
0 is the most acidic and 14 is the most basic /alkaline
