what directs the changes that occur in allele frequency
a. natural selection
b. random mutations
c. hox genes

Answers

Answer 1

Answer:

I think it's b - random mutations... >3

Answer 2

A change in allele frequency is directed by natural selection. So the correct answer is option A.

What is meant by allele frequency?

The allele frequency (also known as gene frequency) refers to the frequency at which a particular allele appears in a population. The term evolution in population genetics refers to a variation in the frequency of a particular allele within a population. The frequency ranges from 0 (zero alleles present in no individuals) to 1 (all alleles present in all individuals). The gene pool refers to the sum of all alleles at all the genes in a population.

Natural selection affects the phenotype, or observable characteristics, of an organism. Phenotype is usually largely determined by genotype (the number of alleles, or versions of genes, that an organism carries).

When the phenotype produced by specific alleles helps an organism survive and multiply better than its neighbors, natural selection can spread the beneficial alleles from generation to generation – in other words, it causes microevolution.

To learn more about natural selection refer to the link: https://brainly.com/question/9830102

#SPJ3


Related Questions

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Answers

Answer:

C would be the answer to your answer

Hope this helps :)

Explanation:

Yo WaSsuPp!!   ^v0!!

                              helpppppppppppppppp plzzzzzzzzz

Heh- no worries i gotchu XD

              Homologous: Similar in position, structure, and evolutionary origin but not necessarily in function.

             With this being said the answer is: "B" A bird's wing bone!,                          it's similar to a human's arm bone but it doesn't do the same thing as a human's arm bone!   I apologize if i'm wrong//You're welcome if i'm correct

((-Side Note-)): If you don't mind if my answer is correct can you pls mark my answer brainliest? Thank you ^v^

                        I hope you have a great day ^v^"  

What is the correct order of organization from SMALLEST to LARGEST?
A. Cell-organ-organ system- tissue

B. Organ system-organ-tissue-cell

C. Cell-tissue-organ-organ system

Answers

Answer:

Option C.

Explanation:

The next largest unit is tissue; then organs, then the organ system. In order, from least complex to most complex: cells; tissues; organs; organ systems; organism; Tissues.

Answer:

C. Cell-tissue-organ-organ system

Explanation:

The cell→ tissue→ organ→ organ system is the correct order of organization from smallest to largest.

Loni makes a diagram to help organize what she has learned about the gas laws.


Which label belongs in the region marked X?

involves changes in temperature
has a constant volume
shows an inversely proportional relationship
does not describe pressure changes

Answers

Answer:

Shows an inversely proportional relationship.

Explanation:

The Boyle's law belongs in the region marked X whereas the other circle belongs to Charles law. There is inverse relationship between the two circles or these two laws because in Boyle's law, temperature is constant while on the other hand, in Charles law pressure is constant instead of temperature. In Boyle's law, pressure of a gas is inversely with its volume whereas in Charles law, the volume of a gas is directly proportional to its absolute (Kelvin) temperature.

Which of the following is a form of stored energy?

Answers

Answer:

What are the options?

Explanation:

Answer:

Options,Options,Options...

Which number is labeling the part of the digestive system that releases acid and mixes the food to break it down?

Answers

Answer:

D

Explanation:

the stomach releases strong acid to digest and break down the food

Pls help me will give points

Answers

i feel ike is the 3rd one maybe

Answer:

D

Explanation:

D is my best bet because most have cilia and flagella to help move them around their environment.

A is for multicellular organisms, B occurs only in some unicellular but not all, C is for multicellular mostly (some unicellular can have it), but D applies to majority of unicellular (almost all have some sort of mechanism for movement)

The light reactions can only occur in the absence of light.
A. True

B. False

Answers

Answer:

false

Explanation:

the light reactant needs light

All of living and noliving things in a particular area

Answers

What are we supposed to answer? There is no question?
That is the definition of an ecosystem

- The ability of an ecosystem to maintain a steady equilibrium by responding to
internal and external negative feedback systems describes -

Answers

Answer:

Describes ecosystem homeostasis

Explanation:

name the structure of the brain that controls sleep.
A. hypothesis(pituitary gland)
B. hypothalamus ​

Answers

The answer's B. hypothalamus

mark me brainliesttt :)))

how can you separate iron filings from sand through which process​

Answers

Answer:

Process called magnetic separation

Explanation:

The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force.

This method is also used to separate the mixture of sand and iron fillings as iron is attracted by magnet.

Answer:

Use a magnet to separate the iron filings from sand since iron is magnetic

what is the total amount of Vit B in 100g Milo powder​

Answers

Answer:

3.6 µg of Vitamin B12, 2.3mg of Vitamin B6, 30.1mg of Niacin B3, 1.8mg of Vitamin B2

Explanation:

Total amount of Vitamin B in 100 grams of Milo powder contains 3.6 µg of Vitamin B12, 2.3mg of Vitamin B6, 30.1mg of Niacin B3, 1.8mg of Vitamin B2. In milo powder, almost all types of vitamin B are present which make it good for our health. This milo powder also contains 54mg Vitamin C, 594mg of Calcium and 21.8mg of Iron so the total amount of Vitamin B is more about 34.2 mg.

How is the atmosphere a system, include components, inputs, outputs & flow.

Answers

Answer:

the flow in systems besides the flow.

Explanation:

Answer:

When studying Earth as a whole, our primary input is energy from the sun and from space. Earth outputs heat and light to space, maintaining an approximate overall steady-state with respect to energy.

Explanation:

A functional or physiological adaptation:
A. Is a physical feature of an organism that helps it survive

B. Allows an organism to perform special functions within the body

C. Is a behavior that is taught after birth

Answers

Answer:

A trust me.

Explanation:

are you functional adaption is an adaption that helps an organism survive in a certain environment, typically altered by a physical stimuli, dietary changes, or injury.

Answer:

yes behavior is taught after birth

How do electronegativity, polarity, and ph all relate and effect each other? I know moderators, you will be reported if you give a link or wasteful answer.

Answers

Answer:Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge. The greater the difference in electronegativity, the more polarized the electron distribution and the larger the partial charges of the atoms.

Explanation:

helppppppppp plzzzzzzzzzzz

Answers

The correct answer is B. They do not harm the organism
the answer is B!! since they don’t harm the organism

Why do scientists only test one independent variable in an experiment?

Answers

To not getting confusing results. By isolating one variable scientists can conclude the results of the experiment were directly impacted by the variable they changed and nothing else.
Testing only one variable at a time helps you look at the results of your experiment and to see how much a single change affected the result.

Question 4 of 10
What is the main function of the circulatory system?
O A. To break down food into molecules of nutrients
B. To collect wastes made by cells and remove them from the body
O c. To carry nutrients to cells and wastes away from cells
O D. To protect the body from pathogens that can cause infection
SUBMIT

Answers

The answerrrrr is B :)(

A population of beach mice have been
introduced to a new disease. This
disease has killed off most of the
population. Some mice in the
population were better suited and
survived the disease, living to
reproduce. The population over time
has grown resistant to the disease.
This is an example of?
(1 Point)
*
Artificial Selection
Natural Selection
Selective Breeding

Answers

It is natural selection. Try to remember from those three selections that natural is where the animal does it by itself. The other two are where humans interfere with it.

Me pueden ayudar con la respuesta? Es urgente!

Answers

A: especie

B: gen

C: desarollo

D:

E:deriva genetica

F:población

G:mutuación

no ps no pude con la D-

Individual bones are organs.
A. True

B. False

Answers

Answer:

a

Explanation:

Answer:

True

Explanation:

Because they are made out of tissues

Item 5 What is the role of a generator in producing electricity? The generator stores electrical energy for later use in homes and businesses. The generator spins the turbine to create mechanical energy. The generator transforms the mechanical energy of the turbine into electrical energy. The generator reverses the turbine to create electrical energy.

Answers

Answer:

The generator transforms the mechanical energy of the turbine into electrical energy

Explanation:

Electricity generator is a device that is used in generating power supply which can be used in industries, homes and for commercial and private purposes.

It operates by converting mechanical energy into electrical energy for the use in an external circuit. mechanical energy can be obtained from steam turbines, internal combusting energy, gas and water turbines and it can be obtained through the rotating shaft.

The capacity of each generator determines the amount of energy it can supply to a given place.

Escribe las diferencias entre los dos tipos de sinapsis.

Answers

Veta las Somalis con todos

*WILL GIVE BRAINLIEST+100 POINTS* i need a Model describing the carbon cycle

Answers

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.

Any reaction that is not intended is called

Answers

the free encyclopedia. A paradoxical reaction or paradoxical effect is an effect of a chemical substance, typically a medical drug, that is opposite to what would usually be expected. An example of a paradoxical reaction is pain caused by a pain relief medication.

- shape and size of cells are related to the function
they perform . Explain with example​

Answers

Answer:

Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes. A cell's function is determined, in part, by its shape

Select the correct answer.
Consider the following chemical equation:

NH3 + O2 → NO + H2O

The equation is unbalanced. Which of the following is the correct balanced equation?

A.
NH3 + 2O2 → NO + 6H2O
B.
4NH3 + 5O2 → 4NO + H2O
C.
4NH3 + 5O2 → 4NO + 6H2O
D.
NH3 + 5O2 → NO + 6H2O
Reset Next

Answers

Answer:

the answer is b.4NH3+5O2=4NO+H2O

A major difference between eukaryotes and prokaryotes is that __________. A major difference between eukaryotes and prokaryotes is that __________. some eukaryotic cells live in areas of temperature extremes whereas prokaryotic cells cannot prokaryotic cell structure is much more complex than eukaryotic cell structure eukaryotes were the first cell type on Earth eukaryotic cells contain the genetic material DNA whereas prokaryotic cells contain RNA eukaryotes' survival is limited to a few environments whereas prokaryotes have adapted to a variety of environments

Answers

Answer:

All life on Earth consists of either eukaryotic cells or prokaryotic cells. Prokaryotes were the first form of life. Scientists believe that eukaryotes evolved from prokaryotes around 2.7 billion years ago.

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information. In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus.

The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure. Eukaryote DNA consists of multiple molecules of double-stranded linear DNA, while that of prokaryotes is double-stranded and circular.

Explanation:

What is the main function of the endocrine system?
A. secrete hormones

B. send nerve impulses

C. produce blood cells

D. produce DNA

Answers

Answer:

A. secrete hormones

Explanation:

Endocrine glands release hormones into the flowing bloodstream, which lets them travel to cells in other body parts. These endocrine hormones help control mood, growth & development, the way our organs work, metabolism, and reproduction.

Answer:

A secrete hormones

Explanation:

Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body. The endocrine hormones help control mood, growth and development, the way our organs work, metabolism , and reproduction.

hope it helps

Jumble letter can you help me plsss​

Answers

Answer

WindSunlightPlantsSoilCoalMineralsWaterAnimals

[tex] \\ [/tex]

In short it's natural resources.

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