Answer:
Helium exist as an isotope, its most common isotope is the one that is placed on the periodic table. The helium atom on the periodic table has two electrons, two protons and two neutrons. The proton and the neutron are located inside the nucleus, this means that two protons and two neutrons can be found inside the helium nucleus. Thus, in the pictures given above, the correct picture is the one that contain four particles.
Explanation:
Look at the chemical reaction below
Magnesium + hydrochloride acid —> magnesium chloride + hydrogen
Mg + 2HCI —> MgCI2 + H2
In this reaction
Magnesium (Mg) is a reactant or product
Hydrogen (H2) is a reactant or product
Magnesium chloride (MhCI2) is a reactant or product
Hydrochloride acid (HCI) is a reactant or product
Answer:
Mg is a reactant ,H2 is a product, MgCl2 is a product and HCl is a reactant.
What causes moon phases and what is it we see from Earth?
Answer:
The phases of the Moon that we see are caused by the relative positions of the Sun, Moon and Earth. The phase of the Moon is defined by the proportion of the Moon lit up by the Sun that is visible from Earth.
Explanation:
Is it recommended for most adults that carbohydrates make up 45-65% of their diet, proteins make up 10-35% of their diet, and fats make up 20-30% of their diet. Does Deb’s diet mee these recommendations? Support your statement with calculations
Answer:No her diet does not. She is currently eating 128.52 calories each for protein, 289.17 calories from fat, and 1413.44 calories from carbs. This means she is consuming 6.6% of her diet from protein, 14.9%, of her diet from fat, and 73.2% of her diet from carbs.
Explanation:
Find the area o o
Trabezium whose parallel
sides are 57cm & 33cm and the distance between
them is 13cm
Answer:
585 cm²
Explanation:
base lengths= 57 cm and 33 cm
height= 13 cm
area= 1/2(57+33)*13= 585 cm²
[tex]\huge{\mathfrak{\purple{Question}}}[/tex]
Find the area of Trapezium whose parallel
sides are 57cm & 33cm and the distance between them is 13cm
[tex]\huge{\mathfrak{\purple{Answer}}}[/tex]
585 cm²
[tex]\huge{\mathfrak{\purple{Explanation}}}[/tex]
Given
Sides of Trapezium ( Length )= 57 and 33 cmDistance Between them ( Height ) = 13 cmTo find Area of Trapezium
Formula of Area of Trapezium
Formula of Area of Trapezium = 1/2 X ( Sum of Length ) X Height
= 1/2 X ( 57 + 33 ) X 13
= 1/2 X 90 X 13
= 585 cm²
#HopeItHelps
How does Natural selection apply to yourself as an individual? will mark the brainliest answer
Answer:
Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. That causes their genes to become more common in the population over time, and it's the way species evolve to adapt to changes in their environment.
Explanation:
hope this helps =)
The extract of which gymnosperm seed is used to help improve memory?
Answer:
Ginkgo
Explanation:
Ginkgo improves memory and enhance circulation and metabolism in the brain.
Answer:
ginkgo
Explanation:
ginkgo seed is used to help improve memory
When seedless plants die, the decaying plants are compressed into a substance called:
A. fuel
B. peat
C. energy
Answer:
C.peat
Explanation:
When seedles plants die, the waterlogged soil slows the decay process. Over time, these decaying plants are compressed into a substance called peat
Answer:
the answer is part A
Explanation:
Please help! 100 points! Only answer if you know :)
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answer:
1. Nitrification occurs when soil microbes convert ammonium into nitrate. Much of the overlap between the carbon cycle and the nitrogen cycle occurs in the soil, in processes conducted by soil microbes. Microbes break down nutrients, build new compounds for their own growth, and eventually die.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like energy molecules, fats and proteins, eventually cycling its way back into the atmosphere. Nitrogen is mainly found in the atmosphere as well and enters the ecosystems as nutrients for plants. Water, nitrogen and carbon cycles. Carbon moves from the atmosphere and back via animals and plants. Nitrogen moves from the atmosphere and back via organisms. Water moves on, above, or below the surface of the Earth.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice erode and shape the land. Volcanic activity and earthquakes alter the landscape in a dramatic and often violent manner. And on a much longer timescale, the movement of earth's plates slowly reconfigures oceans and continents. Each one of these processes plays a role in the Arctic and Antarctica.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. Earth's surface is the only habitat available to the human race. Understanding the processes by which that habitat has been created and continually altered is important to determine the causes of environmental degradation.
a.
Identify the biotic limiting factor from the choices below.
space
b. vegetation
C. water
d. climate
Answer:
b.
Explanation:
Plants are living things(biotic).
water and climate are non-living things (abiotic)
in the term 2pq of the Hardy-Weinberg equation. Why is the multiplication by two necessary?
PLEASE HELP ME!!!!!
A-The term is multiplied by two because the effect of both the alleles is taken into account.
B-There are two ways that a heterozygous individual can arise: either by receiving a recessive allele from the egg and a dominant allele from the sperm, or by receiving a dominant allele from the egg and a recessive allele from the sperm
C-The frequency of the dominant allele is doubled because of its stronger effect on the phenotype.
D-The term is multiplied by tvo to account for doubling of the population in each generation.
Answer:
The correct answer is : option B.
Explanation:
Hardy–Weinberg equilibrium is a mathematical model that states that genotype percentage or frequency in a population and allele in a population remains stable or constant to generations if there are no evolutionary influences present.
Hardy Weinberg equation is :
P²+2pq+q² = 1
Here, p² represents the frequency of genotypes dominant homozygotes (AA) in a population in equilibrium. The term 2pq represents the frequency of heterozygotes (Aa) as there are two ways of developing heterozygous individuals either dominant from the egg and recessive from sperm or vice versa. and the term q² represents the frequency of recessive homozygotes (aa).
Thus, the correct answer is : option B.
There are two ways that a heterozygous individual can arise: either by receiving a recessive allele from the egg and a dominant allele from the sperm, or by receiving a dominant allele from the egg and a recessive allele from the sperm, the frequency of the heterozygous allele is multiplied by 2 (option B).
The Hardy–Weinberg equation is an equation which expresses the principle of Hardy-Weinberg equilibrium. The Hardy-Weinberg equilibrium states that in the absence of external evolutionary factors which disturbs equilibrium, the amount of genetic variation in a population will remain constant from one generation to the next.
The Hardy Weinberg equation is given as: p² + 2pq + q² = 1
In the equation above,
p² represents the frequency of dominant h0m0zygotes (AA)q²represents the frequency of recessive h0m0zygotes (aa),2pq represents the frequency of heterozygotes (Aa),p represents the allele frequency of the allele A and q represents the allele frequency of the allele a.The sum of all the three frequencies equal to 1 representing all the possible allele combinations.Since there are two ways that a heterozygous individual can arise: either by receiving a recessive allele from the egg and a dominant allele from the sperm, or by receiving a dominant allele from the egg and a recessive allele from the sperm, the frequency of the heterozygous allele is multiplied by 2.
Learn more at: https://brainly.com/question/16823644
science question help?
Answer: The answer for question 8 would be C and the answer for question 6 would also be C.
Explanation: This is because although both the focus and epicenter describe where the earthquake was, the focus refers to the actual area on the fault that is underground and the epicenter refers to above ground.
ASAP!!!!!!! State your view on an ELSI issue, and develop a logical argument to support your view.
Answer:
Biotechnology has raised a number of ethical, legal, and social issues. For example, are genetically modified foods safe to eat, and who controls a person’s genetic information?
Explanation:
Concerns from Biotechnology
The use of biotechnology has raised a number of ethical, legal, and social issues. Here are just a few:
Who owns genetically modified organisms such as bacteria? Can such organisms be patented like inventions?Are genetically modified foods safe to eat? Might they have unknown harmful effects on the people who consume them?Are genetically engineered crops safe for the environment? Might they harm other organisms or even entire ecosystems?Who controls a person’s genetic information? What safeguards ensure that the information is kept private?How far should we go to ensure that children are free of mutations? Should a pregnancy be ended if the fetus has a mutation for a serious genetic disorder?
The ELSI issues are important and require to be maintained in order to maintain bioethics and examine various impacts of science and technology on the society.
What are ELSI issues?ELSI stands for Ethical, Legal, and Social Issues. It is a widely used acronym in the bioethics literature which encompasses a broad range of research work which mainly examines the various impacts of science and technology on the society.
The ultimate mission of the ELSI Research Program is to support the research and education activities which include promotion of genetic privacy and fair use of genetic information, encouraging the responsible integration of new genetic information and technologies into clinical and non-clinical settings, and to ensure that the genetic research is being conducted in ethical way.
Learn more about ELSI here:
https://brainly.com/question/7126793
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The bending of which body part involves the working together of parts of the skeletal, muscular, and nervous systems?
Answer:neck
Explanation:
The bending of the neck involves the cranial nerves ,muscles and also vertebral skeletal system
How are glaciers, glaciation and human activities relate to climate change or global warming
Answer:
The Production of C02 Co2 is an greenhouse gas and will go up into the atmosphere to heat it if the atmosphere is gaining to Much C02 it will heat up therefore Glaciers Will melt under the increasing heat a
In the text area below describe the function of the
cell wall.
DONE
Answer:
The cell wall supports and protects the cell, determines the shape of the cell, assists cells in communication, stores carbohydrates, and allows water and smaller particles to enter the selectively permeable structure of the cell.
A human baby is born with one X chromosome and one Y chromosome. What
must be true about this baby?
A. The baby is female
B. The baby is haploid
C. The baby is prokaryotic
D. The baby is male
Answer: d) the baby is male
Explanation: Ovules contain X chromosomes whereas sperms come in two types: one type contains x chromosome and the other contains Y chromosome.
When a sperm containing X chromosome fertilises with an ova, the zygote will have two X chromosomes. This zygote would develop into a female child. When a sperm containing Y chromosome fertilises with an ova, the zygote will have one X and one Y chromosome. This zygote would develop into a male child.
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Answer: the baby is male
Explanation: female babies are born with 2 X chromosomes. Haploid babies have a one set of unpaired chromosomes. It’s impossible for a baby to have an X and Y chromosome pair and be prokaryotic. Males have one X chromosome and one Y chromosome, so it has to be male.
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which is not an example of inorganic fertilizer? A.nitrogen fertilizer B.phosphorus fertilizer C. Livestock waste
Answer:
Livestock waste
Explanation:
Fertilizers supplement the soil with macronutrients needed in large amounts: nitrogen, phosphorous and potassium. However, organic and inorganic fertilizers do so via different materials. Organic fertilizers contain only plant- or animal-based materials that are either a byproduct or end product of naturally occurring processes, such as manures, leaves, and compost.
Inorganic fertilizer, also referred to as synthetic fertilizer, is manufactured artificially and contains minerals or synthetic chemicals. For example, synthetic nitrogen fertilizers are typically made from petroleum or natural gas. Phosphorus, potassium and other trace elements in inorganic fertilizers are often mined from the earth. Balanced inorganic fertilizers, high in all three macronutrients, commonly include products like ammonium nitrate, ammonium sulfate, potassium chloride (potash), triple superphosphate, and magnesium sulfate (Epsom salts).
Answer:
Hey!
C. LIVE STOCK WASTE is your answer!
Explanation:
Waste from cattle/pigs/goats/hens and other animals in the farm all contain organisms which live in the waste...this is how the waste is decomposed and formed into natural fertilisers
THE REST DO NOT CONTAIN ANY ORGANIC MATTER...
HOPE THIS HELPS!!
Explain how an atom of carbon in the atmosphere becomes part of the muscle of the wolf.
Answer:
Explanation:
Carbon atoms in the atmosphere are in the form of CO2
Plants convert CO2 into simple sugars , animals eat the plants and use the sugars for fuel and building tissues like muscle
Fish that live in murky water most likely have larger, more developed ___. dorsal fins. olfactory lobes. rosettes. pharyngeal teeth.
Answer:
olfactory lobes
Explanation:
The correct answer would be olfactory lobes.
Murky waters are generally dark, and contains very little (low) light. Fishes that live in murky water need to be specially adapted in order to be able to live in such environment. These adaptations could be in terms of:
A well developed lucidum tapetum, a layer of protein crystals known as guanine which enables them to see through low light and act as a kind of 'night vision'.A well developed olfactory lobe which receives and process information from the olfactory nerve with high efficiency and generally serves to improve the sense of smell.1. How are populations of chimpanzees affected by slash and burn agriculture? 2. Which features of chimpanzees make them more disadvantaged than other primates?
Answer:
1. Slash and Burn agriculture refers to a technique of farming that requires plants in a forest or woodland to be decimated to create a cultivable expanse of land.
Some of these plants are usually homes to wild chimpanzees. The more they are cut down, the deeper into the forests they would migrate, that's if they ever find a place like it.
2. When compared to the other primates such as monkeys, baboons, etc their larger body size, puts them at a disadvantage. This is because when they are placed in a restricted space, they need more food which in turn translates to increased height and weight.
Cheers!
How Are We Able to See the Moon?
Answer:
We can see the Moon as the sunlight reflects to us on the Earth from its surface.
Explanation:
We can see the Moon as the sunlight reflects to us on the Earth from its surface. The surface of the moon is very rocky and fairly dark. However, it provides enough light at night as it is so close to the earth. Everyone see the Moon at different positions at the same time.
The Moon also circles once around the Earth during a month.
Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is
homozygous for attached earlobes. Which describes the genotypes of their offspring?
100 percent Ee
100 percent unattached earlobes
100 percent ee
100 percent attached earlobes
Answer:
100 percent Ee
Explanation:
This is a cross involving a single gene coding for attachment or not of earlobes. The allele for unattached earlobes (E) is dominant over the allele for attached earlobe (e). This means that allele E will always mask the phenotypic expression of e in a heterozygous state.
A parent that has same alleles for unattached earlobes i.e. EE is crossed with a parent that has same alleles for attached earlobes i.e. ee. In this cross, all of the offsprings will have a heterozygous genotype, Ee because gametes E and e will be produced respectively by each parent.
Hence, since all of the offsprings will have an Ee genotype, it means 100% of their offsprings will have Ee (HETEROZYGOUS).
Answer:
Its A or 100% Ee
Explanation:
edge 2022
Which is required for sexual reproduction? 1.mitosis 2.binary fission 3.diploid cell production 4.meiosis
Answer:
4. Meiosis
Explanation:
Mitosis creates cells for growth and repair, not for sexual reproduction. Binary fission is a form of asexual reproduction, not sexual reproduction. Diploid cell production is mitosis (mitosis creates diploid cells, or cells with a full set of chromosomes)
Meiosis is the correct answer. Meiosis creates gametes or sex cells that are necessary for sexual reproduction. Through this cell division process, 4 gametes are produced. The cells that are produces are haploid, which means they only have half of a full set of chromosomes. The cells are haploid because, during fertilization, a sperm (male sex cell) and egg (female sex cell) fuse. The result is a diploid zygote with half of the genetic information from the father and the other half from the mother.
The correct answer is 4. Meiosis.
Answer:
its D. Meiosis
. How much will it cost to use 1200 W microwave oven for 10 minutes if one kilowatt-hour costs $0.67?
most likely too much...
Can you guys plsssss help me with the questions plsss my assigment is already due plss help me guys!!!!!
Answer:
FOG stands for 'fats, oils and grease'. It is present infood products such as lard, butter, animal fats, vegetable oils, and dairy products.
FOG is prepared during the process of cooking and the washing up processes. When FOG is allowed n sewer pipes it can accumulates inside sewer pipes, so proper disposal method of FOG is required.
Some of the source of FOG and disposal methods are as following:
Cooking oil - Allow the oil to be cooled and place it in a non-recyclable container such as plastic-lined paper containers.
Food Scraps: compost bin can be used to dispose FOG by putting all food scrap into it.
Salad dressing - If little maount of salad dressing is left, use a paper towel to clean it and it will absorb the left residue which can be easily dipose in garbage.
Dairy products such as milk - it can be disposed on-farm or to a proper disposal site otherwise it will affect groundsurface as it contain fat.
Hence, using above methods for disposing FOG will help to save envrionment.
Experiment: Water Properties: Why were the results with just water so much different than the trials with the detergent?
Answer:
Explanation:
Water is a universal solvent whose molecule are joined together with a force of attraction. Its surface tension is hidden between bonds. When washing, soap is added for easy penetration of water molecule and to decrease the surface tension. This then allow the water to move freely round the object been washed.
Detergent aid the distribution of water, of water is used alone without the detergent then the surface area of water will not be reduced to all even spread. But, if detergent is added the tension is reduced and a better result is obtained.
How does crossing over create new gene combinations on each chromosome
Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.
Answer:
Crossing-over
why would CH not form as a result of carbon's interactions with other elements? A:Carbon normally has two covalent bonds. B:Carbon normally has four covalent bonds. C:Carbon cannot bond with hydrogen only.
Answer:
B
Explanation:
Ms,Biswas made me do this mate (PAIN)
Answer:
B - Carbon normally has four covalent bonds.
Explanation:
What are three ways RNA differs from DNA
Answer:
1. DNA is double-stranded, and RNA is single-stranded.
2. DNA stores and transfers genetic information, RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.
3. DNA contains the sugar deoxyribose, RNA contains the sugar Ribose.
A goal of using animal models is to explain the molecular detail of specific behaviors encoded in the human brain. How would you compare the developmental biology experiments on memory and learning using the fruit fly, drosophila melanogaster, as evidence about the evolution of a human behavior?
Answer:
It is possible to compare the expression of homologous genes in the brain of D. melanoganster and humans, because the expression levels of conserved genes may be associated with the evolution of cognitive features such as complex learning and memory.
Explanation:
Model organisms can be used to understand the patterns and processes that affect human evolution. Drosophila melanogaster is a model organism that has been used to study expression patterns of conserved genes in the course of evolution. This model organism has also been used to develop genetic mutant lines in order to examine the role of genes evolutionarily conserved in animals, including those involved in neurocognitive development.
In genetic research, an experiment as the above described is framed in a research field named 'Behavioral Genetics', which is a discipline that studies how evolutionarily conserved gene networks may be associated with neurocognitive tasks during brain evolution.
