PLEASE ANSWER 60 POINTS
Which is an example of genetic drift?

A. Artificial selection creates vegetables resistant to insects.

B. Allele frequencies change randomly each generation.

C. Females choose mates, resulting in large males.

D. Polygenic traits change due to directional selection.

Answers

Answer 1

Answer:

Allele frequencies change randomly each generation is the example of genetic drift.


Related Questions

50 POINTS!!!! The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.


What shared characteristic can be written at point X? Use complete sentences to explain your answer.​

Answers

Answer:

Heterotrophs

Explanation:

Protists, plants, fungi and animals alike have heterotrophic cells. This meaning they depend on organic molecules for energy as opposed to plants that can make their food from abiotic factors.

If all of these organisms were
on one food chain, which
would be last?
A predator
B decomposer
C prey
D plant

Answers

Answer:

B. Decomposer

Explanation:

Prey eats plant, predator eats prey, decomposers eat predator.

Answer:

Option D, plants. Plants are the producers in this ecosystem, producers are always on the bottom of the trophic pyramid.

what do you think might happen to a bird that doesn't have a beak that can be used to eat the food that exists in a certain area?

Answers

Answer:

Down below

Explanation:

The bird would either die, find other food, or evolve to have the beak it needs.  It's a matter of natural selection.  If the bird doesn't learn that it needs a certain beak, then the species will die off.  However, if the bird learns that it needs a certain type of beak, it's species will evolve to have this beak.  In the off-chance that the bird doesn't evolve, it will most likely find another source of food to survive.

Hope this helps!  If you have anymore questions, I am free to answer them!  :D

Here is an image of the mitochondria. Mitochondria numbers can differ between cell types based on the function of the cell. Which of these cells would contain the highest number of mitochondria?

A) skin cell
B) lung cell
C) muscle cell
D) red blood cell

Answers

[tex]\huge\mathbb{ANSWER:}[/tex]

[tex]_____________________________[/tex]

Which of these cells would contain the highest number of mitochondria?

A) skin cell

B) lung cell

[tex]C) \: \large\mathcal\color{red}{muscle \: cell}[/tex]

D) red blood cell

[tex]_____________________________[/tex]

[tex]\small\mathbb\color{gold}{Hope\: it \: helps}[/tex]

Answer:

Letter C is the correct answer Good luck study love your eyes

Which is true according to Oparin and Haldane?
O The first organic molecules were formed in the sea, from the gases in the atmosphere.
O The early atmosphere contained methane, carbon dioxide, and oxygen
O The formation of amino acids was probably complete within one million years.
O Organic molecules eventually merged from several places on Earth.​

Answers

Answer:

A) The first organic molecules were formed in the sea, from the gases in the atmosphere.

Explanation:

Here's a jist of what they proposed.

Energy Pyramids represent the food chain energy and population sizes. Which statement is NOT true.

A. 90% of available energy is lost between each trophic level
B. Populations are smaller as you go up the pyramid
C. Heat is only lost at the consumer levels
D. Decomposers play a role at all trophic levels

Answers

D is false. Decomposers are a separate level in of itself, so as far as “decomposers play a role at all trophic levels” go, the answer choice would be invalid, and thus forth is the correct answer. All other answers seem to be valid.

Identify the components of blood and describe the function of each component.

Answers

Plasma is the major component of the blood and is largely made up of water, with proteins, ions, nutrients, and wastes thrown in for good measure. The red blood cells are in charge of transporting carbon dioxide. Blood clotting is controlled by platelets. White blood cells are immune system cells that aid in immunological response.

Which organisms are likely to be found in level 1 of this diagram? Select the
two correct answers.
4
600
3
1550
Trophic Level
2
17000
1
340000
O A. Daisy
B. Tiger
O C. Algae
O D. Squirrel
O E. Rabbit

Answers

Answer:

Explanation:

Which organisms are likely to be found in level 1 of this diagram? Select the

two correct answers.

4

600

3

1550

Trophic Level

2

17000

Algae are the primary producer in the trophic levels. Therefore, option "C" is correct.

What are tropic levels?

Tropic levels are the levels or steps in the food chain. In tropic levels, the energy is transferred to different levels through food produced by the lower levels. The source of nutrition varies in different food chains.

There are four types of tropic levels, first primary producers are the autotrophs which produce their own food. Second, are herbivores which consume the autotrophs also called primary consumers. Third are secondary consumers who are carnivores and fourth are the tertiary consumers who are also carnivores.

example:  sun, plants,  deer, and tigers.

Tropic levels play a key role in understanding the flow of energy.

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Chemical reactions can create more complex products. What evidence best explains this phenomenon? WILL MARK BRAINLIEST FOR CORRECT ANSWER (100 points)
Water molecules combine to form complex macromolecules that the body needs.
The molecular structure of complex macromolecules show that a chemical reaction has occurred.
Larger macromolecules breakdown into smaller macromolecules and combine during the reaction.
The basic need for oxygen makes the element essential to create macromolecules.

Answers

Answer:

Option C

Explanation:

Larger macromolecules break down like water and create covalent macro molecules.

Later while chemical reactions they combine again to form covalent molecules .

Option C is correct

Based on the section "Zeus Is Helper And Protector," which of the following statements is TRUE? A Zeus and Jupiter are the same god. B Zeus tells rich people to only care for themselves. The Greeks believe Zeus is a powerful god. Zeus does not have the power to punish people. Park Next C D​

Answers

the Greeks believe Zeus is a powerful god

Answer:

The Greeks believe Zeus is a powerful god

A leaking septic tank is polluting groundwater. What kind of pollution is this?
A: watershed pollution
B: nonpoint-source pollution
C: point-source pollution
D:aquifer pollution

Answers

The correct option is b

Does the King Fish have the same organ of respiration as Dolphins do? Justify your answer

Answers

Answer:

Dolphins are mammals, not fish. Unlike fish, who breathe through gills, dolphins breathe air using lungs.

They don't have gills, so they can't breathe underwater like fish. They breathe through a set of nostrils on top of their heads known as a blowhole. While swimming or resting under the water, they can take breathes by exposing only the tops of their heads to the air.

Like all mammals, dolphins have lungs and breathe air. They are the organ of the respiratory system which process the air inhaled through the spiracle.

I Will mark Brainliest: Which area is the most common source region for cold, dry air masses that move over NYS? 1) North Atlantic Ocean 2) Gulf of Mexico 3) Central Canada 4) Central Mexico

Answers

Answer:

1

Explanation:

north Atlantis ocean is the most common source region for cold

what is the three kind of volume​

Answers

Sphere Volume = 4/3 πr³ , where r is the radius.

Cylinder Volume = πr²h , where r is the radius and h is the height.

Cone Volume = 1/3 πr²h , where r is the radius and h is the height.

Which of the following statements about the Hardy-Weinberg principle are true?

Select all that apply.


It assumes certain forces are acting on a population.

It is used to model genetic equilibrium.

It assumes certain forces are not acting on a population.

It is used to model gene flow.

Answers

Answer:

-It assumes certain forces are not acting on a population

-It is used to model genetic equilibrium

It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.

Thus, Mendelian genetics are discussed in the context of populations of diploid, sexually reproducing individuals in the Hardy-Weinberg Theorem.

This theorem argues that allele frequencies in a population won't change from generation to generation under a particular set of assumptions.

The anticipated genotype frequencies are p2, 2pq, and q2 if a population has two alleles at a particular site and the allele frequencies are p and q. Once a population is in Hardy-Weinberg equilibrium, its frequency distribution won't vary from generation to generation.

Thus, It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.

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What are the components of DNA? What’s the structure of nucleotides and how do they connect?

Answers

Answer:

Components of DNA includes ribose sugar, phosphate group and four nucleotides(Adenine,cytosine,thymine,guanine).

Explanation:

DNA is made up of two linked strands that are wrapped around each other in a coiled pattern forming the double helix.Each strand of the DNA is made of a backbone that consist of a ribose sugar and a phosphate group.Each phosphate group is attached to one of the four nucleotides(Adenine,cytosine,thymine,guanine).The two strands of a single DNA molecule are linked by the nucleotides.Adenine and Guanine are called purines.cytosine and Thymine are called pyrimidines.Adenine from one strand makes a double bond with Thymine from another strand linking the two strands of DNA molecule.Cytosine from one strand makes a triple bond with Guanine from another strand linking the two strands of DNA molecule.A picture of DNA and nucleotide structure is attached below.I hope it helps.

How fossils are formed? Explain (3)​

Answers

Answer:

Fossils are formed from the remains of creatures that went extinct many years ago. Fossils form by sediment building up over a long time period. This sediment then compacts, turning it into a solid. This solid may be rock, sap, or mud.

How does biotechnology use viruses and bacteria?
to copy a specific antigen
to produce proteins for human consumption
to respond to and destroy cancer cells in humans
as a carrier to insert a desired DNA segment into an organism

Answers

to produce proteins for human consumption!!

Meosis occurs in a ______________ that is a _______________ that undergoes a ___________________

Answers

Meiosis occur in diploid cell that undergoes reductional division.

what is meiosis?

Meiosis, also called reduction division, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or germ cells.

The process of meiosis is characteristic of organisms that reproduce through fusion. Such species have in the nucleus of each cell a diploid (double) set of chromosomes, consisting of two haploid sets (one inherited from each parent). These haploid sets are homologous—i.e., they contain the same kinds of genes, but not necessarily in the same form.

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How many significant digits are there in the following number: 405001 Select one: a. 6 b. 5 c. 3 d. 4

Answers

Answer:

A: 6

Explanation:

405001 does contain zeros, which can make it confusing when trying to figure out how many significant figures there are. However, since the zeros are on the inside of the number, they are counted as "significant".

For example,

19205 contains 5 significant figures while 50,000 contains 1 significant figure.

You are assigned with the task of comparing the United States with Canada. Your
primary concerns are patriotism, college and career readiness, crime rates, wealth,
cultural norms and values. Which social institution would best help you with your
research?
a- Family
b-Religion
c-Education
d- Economics

Answers

the answer is c- eduction

“*•Pls help me!!!•*”

Answers

Answer:

Cold weather

Explanation:

Drought, large numbers of plants, and heavy wind are all factors which would cause the further spreading of wildfiresWildfires generally take place in hot, humid, and dry weatherHence, cold weather decreases the magnitude of the wildfireOption 3

Answer:

Cold weather

Explanation:

I second the other person, thank you! Have a blessed day <3

Name the three hormones that are involved in the stress response and identify their function.

Answers

Answer:

cortisol, catecholamines and thyroid hormone

Explanation:

trust

Answer:

Three hormones are adreenalin, cortisol, and your thyroid hormone.

Explanation:

Adrenaline is what gives you energy, cortisol is your prime stress hormone and the thyroid hormone slows when you are stressed. I hope this helps! :)

explain the role bacteria play in a human body?

Answers

Answer:

The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins,

Explanation:

Explain the levels of organization beyond our planet.

Answers

Answer:

there is not much the land and earth could be better-tooken care of

Explanation:

V.O.C is the acronym for ___________________.

A: Very original components
B: Vast open containers
C: Violently oxidizing chemicals
D: Viotile organic compounds

Answers

The answer will be “D” Viotile organic compounds

Answer:

D

Explanation:

volatile organic compound

Use the graph to find the factorization of x2 - 7x+12.

A. (x-6)(x-8)
B. (x - 3)(x - 4)
C. (x+3)(x + 4)
OD+
D. (x + 6) (x+8)


Answers

Answer:

Explanation:

Use the graph to find the factorization of x2 - 7x+12.

A. (x-6)(x-8)

B. (x - 3)(x - 4)

C. (x+3)(x + 4)

OD+

D. (x + 6) (x+8)

Energy connection- Be able to identify an organism at each level of the
energy pyramid.
o Producers- What is their source of energy?
o Decomposers- What are they?
o Consumers
▪ Herbivores
▪ Carnivores
Omnivores
Scavengers

Answers

One example of a producer is grass. A producer’s source of energy is the sun.

One example of a decomposer is a beetle. Decomposers are organisms that decompose organic material.

One example of a consumer is a deer. Consumers are organisms that eat or use other organisms and things.

Herbivores are animals who have a diet of only plants. One example of an herbivore is a caterpillar.

Carnivores are animals who have a diet of only meat. One example of a carnivore is a wolf.

Omnivores are animals who have a diet of eating both plants and meat. One example of an omnivore is a bear.

Scavengers are organisms that enjoy consuming decaying materials. One example of a scavenger would be a hyena.

In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in

Answers

In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in Competition is an relations between organisms or species in which both need a resource that is in limited pool.

What is competition in an ecosystem?

Competition will happen between organisms in an ecosystem when their niches overlay , they both try to utilize the exact resource and the resource is in lack of supply.

Fuana contend for chow, water and area to live. flora contend for light, water, minerals and root area.

So,Competition is an relations between organisms or species in which both need a resource that is in limited pool.

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with a population growth rate of 5% how long will it take for a population to double from 20,000 to 40,000 people?

Answers

Answer:

15 years

Explanation:

Compound growth

Equation:

20000 x 1.05 to the power of how ever many years needed

20000 x 1.05 to the power of 15 takes it just over, with 41578 people alongside decimals.

Therefore, it is 15 years.

Answer:

20 years for the population to double from 20,000 to 40,000

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