Which of the following is an example of gene flow?
O The movement of people on Earth steadily increases and alters the course of human evolution
An earthquake results in the formation of a canyon, splitting a population of toads apart
O A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest
A small population of grasshoppers gets blown away and isolated during a storm. The gene pool of the new population is different from the original population

Answers

Answer 1

An example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.

What is Gene Flow?

Gene flow, which can also be referred to as gene migration, is the transfer of genes or genetic material from one population of a species to another.

Migration of humans from one region to another leads to people of one race intermarrying with people of another entire race.

For example, A European migrating to North America, and getting married to a North American thereby giving birth to offspring exhibiting traits of booth a European and a North American. A gene flow has occurred.

Therefore, an example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.

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Answer 2

Answer:

A

Explanation:

I took the test


Related Questions

A biological factor that is correlated with borderline personality disorder is:
a)
a high level of testosterone.
b)
a low level of serotonin.
c)
a high level of serotonin.
d)
a low level of testosterone.

Answers

A low level of testosterone

=
Which of the following is a way that minerals are used?
a. industry
b construction
C technology
d. all of the above
Please select the best answer from the choices provided
A
ООО
0 0 0

Answers

Answer:

D.

Explanation:

"Eukaryotes are more evolved than prokaryotes."Do you agree the statement?​

Answers

Answer:  Eukaryotes are more evolved than prokaryotes. This is false. Again, no living taxon is more evolved than another.

Which organelle is the powerhouse of the cell

Answers

Answer:

The mitochondria

Explanation: Mitochondria (sing. Mitochondrion) are known as the powerhouse of the cell because they are responsible for the release of energy from food ,i.e, cellular respiration. This energy is released in the form of ATP (adenosine triphosphate), the energy currency of the cell.

The mitochondria is the power house of a cell.

Is cloning of endangered species a reliable and acceptable way to repopulate those ecosystems that suffer the loss of important species? Why or why not. (2 paragraph
minimum).

Answers

Cloning an extinct species is a possible answer for a suffering ecosystem. The only drawback is that scientists have not yet mastered cloning. When attempting to clone animals often they are deformed and therefore not able to reproduce let alone survive. Even when scientists do manage to clone animals without killing them, it takes many generations of selective breeding to get the species you are trying to revive which takes time, making the ecosystem even more damaged.

The study of a living being is called biology.

The correct answer is not reliable.

The duplication of the genes in the laboratory is called cloning.

The first clone species was the sheep whose name was a dolly.

Those species which are on the verge of extinction is called endangered species and they need extra protection to carry their gene to the next generation.

The cloning will be able to multiply the gene in the in-vitro culture but they will have a direct impact on the natural genes and the combination of the gene present in nature.

The natural species have all the desired genes which help them to survive in nature, whereas the clone species will not have the desired gene which is required to adapt to nature and they will extinct eventually. If these genes pass on to the next generation then the endangered species will also have less chance to survive in nature.

Hence, in my opinion, they cloning is not a suitable way to save endangered species.

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In 2018, the average age for first marriage in the United States was 29.8 years for men and 27.8 years for women. These ages for first
marriages are

Answers

Those ages for first marriages are averages

These ages for first marriages are Average age .

What is the average age of first marriage in the United States?

The median age at first marriage for women was 28 years in 2015-2019, up from 26.3 in 2006-2010. The median age at first marriage for men was 29.9 years in 2015-2019, up from 28.1 in 2006-2010.

What is the median age at first marriage for women?

In 2019, the median age for the first wedding among women stood at 28.4 years.

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What is the function of the structure labeled C in the diagram to the right? it is where water, dissolved substances, and urea are filtered out of the blood.

Answers

Answer:

B. It captures the substances filtered out of the blood.

Explanation:

Edge 2021

Answer: B

It captures the substances filtered out of the blood.

Explanation:edge 2022

Granite is an intrusive igneous rock with large crystals because it cools slowly. Where was this rock most likely formed ?

A - in a river
B - deep inside a volcano
C- in a mountain range
D- on the surface of a volcano

Ik the answer is not c
Can someone help me figure this out plz and thank you

Answers

Answer: D

Explanation: Because rock cools on the surface of the volcano and I know because I learned about volcanoes and I went through the topic.

Granite is an intrusive igneous rock with large crystals because it cools slowly. this rock most likely formed on the surface of a volcano. thus option D is correct.

What is rock cycle ?

Rocks are naturally occurred on non-living earth which are made by collection of  mineral grains held together in a firm, it can be tiny or big as well and can be easily identified with their texture.

The Rock cycle can be defined as a continuous process through which old rocks are transformed into new rock due to cool down of molten magma, when it solidifies become igneous rock.

In a rock cycle, when the break down of these igneous rocks occur  small particles that are transported and deposited to form sedimentary rocks,  When the igneous and sedimentary rocks heated up and under the pressure they change into metamorphic rocks.

The metamorphic rocks which are subjected under great heat and pressure melt down to form molten magma which again can cool down and solidify into igneous rocks

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The following table provides phenotypic data for a population of mammoths living in cold environments based on fossil and DNA evidence.

Characteristic Percent of Population Showing Trait by Generation
Generation 1 Generation 2 Generation 3
Tusks greater than 2.5 m in length 25 25 25
Tusks less than 2.5 m in length 75 75 75
Mass greater than 4,000 kg 15 15 15
Mass less than 4,000 kg 85 85 85
Fur thickness greater than 6 cm 15 25 35
Fur thickness less than 6 cm 85 75 65
Based on this data and your knowledge of natural selection, which explanation best explains the trends seen in the data?

A. Individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offspring.
B.Individuals within this population of mammoths tend to only mate with individuals that have thick fur.
C.This population of mammoths appear to be in Hardy-Weinberg equilibrium since no allele frequencies are changing over time.
D.Individuals with thick fur migrated into the population of mammoths, increasing the proportion of these individuals.

PLEASEEE HELPPP MEEEE!!!!

Answers

Answer:

Individuals with thicker fur had a survival advantage in the cold

Explanation:

Natural selection means the process of changing the adapting the new environment. Based on the given data one can conclude that the individual with thicker fur had a survival advantage in the cold environment.

Why natural selection occurs?

Natural selection takes place due to 3 underlying reasons:

ReproductionHeredityVariation in fitness of organisms.

Due to these reasons, natural selection can leads to speciation.

As the individual are living in cold environment, they need to adapt the change in environment. So, individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offsprings.

Thus, option A is correct.

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Can people develop PTSD vicariously? How different are the experiences of those who develop PTSD vicariously compared with people who develop it through firsthand experience?

Answers

Answer: certain people can develop PTSD vicariously some people cant but some can there is a huge difference between them people that experience in first hand have some what worse PTSD becuase it was first hand and not vicariously

Explanation:

trust me

Mosses and trees are both what?

Answers

Answer: D. (Mosses and trees are both plants.)

Explanation: Since mosses are non-vascular plants and trees are vascular plants, and mosses and trees are both not seed plants, mosses and trees are both plants. (Hope this helps! :D)

what is do scientists look for when classifying organism​

Answers

Answer:

they look at characteristics, such as their appearance, reproduction, and movement, to name a few.

Explanation:

:]

In the pregnancy time the embryonic cells are developed into different types of cells,tissues,organs How??​

Answers

Answer:

The embryonic stage plays an important role in the development of the brain. Approximately four weeks after conception, the neural tube forms. This tube will later develop into the central nervous system including the spinal cord and brain. The neural tube begins to form along with an area known as the neural plate.

Explanation:

This is my teacher/daughter

Answers

thats nice :)

also hi hru

Discuss the arguments for and against genetic therapy and genetic engineering.

Answers

Answer:

Reasons to ban germline gene editing include the profound risks to future children, thin medical justifications, reinforcing existing inequalities and creating new forms of discrimination, eroding public trust in responsible science, and undermining global agreements.

Explanation:

ppbag at it again

help please asap!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Basidiomycotes

the second one

Explanation:

List the angles in order from smallest to largest. Note image in not drawn to scale

Answers

Using sine rule and cosine rule, the angles from smallest to largest is A,B,C.

Using the cosine rule;

a^2 = b^2 + c^2 - 2bc cos A

When;

a = 9 cm

b = 16 cm

c = 18 cm

9^2 = 16^2 + 18^2 - (2 × 16 × 18) cos A

81 = 256 + 324 - (576) cos A

81 = 580 - 576 cos A

81 - 580 = - 576 cos A

cos A = (81 - 580)/  - 576

A = cos-1[(81 - 580)/  - 576]

A = 30°

Using the sine rule;

a/sin A = b/sinB

asinB = bsinA

sinB = bsinA/a

B = sin-1(bsinA/a)

B = sin-1[(16 × sin30)/9]

B = 63°

Now;

A + B + C = 180(Sum of angles in a triangle)

C = 180 - ( A + B)

C = 180 - ( 30 + 63)

C = 87°

The angles are A, B, C.

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In your own words explain why the sky is blueI

Answers

Answer:

As white light passes through our atmosphere, tiny air molecules cause it to 'scatter'. The scattering caused by these tiny air molecules (known as Rayleigh scattering) increases as the wavelength of light decreases. ... Therefore, blue light is scattered more than red light and the sky appears blue during the day.

Explanation:

Thank You I hope it's helpfull...

In what parts of the body would you expect oxyhaemoglobin to be breaking down to oxygen and haemoglobin ?

Answers

Answer:

Haemoglobin binds with oxygen in body locations where the oxygen concentration is high (in the lungs) and forms oxyhaemoglobin. Blood with a high concentration of oxygen is described as oxygenated

tissue respiration, location in the cell and sequence of reaction​

Answers

Answer:

The Location of Cellular Respiration

Cellular respiration takes place in both the cytosol and mitochondria of cells. Glycolysis takes place in the cytosol, whereas pyruvate oxidation, the Krebs cycle, and oxidative phosphorylation occur in the mitochondrion.

Tissue respiration occurs internally where the oxygen carried by the blood and RBCs is exchanged with the carbon dioxide produced by the cells of various tissues. ( This answers the location of where tissue respiration occurs

Sequence of tissue respiration

The stages of tissue respiration include:glycolysis - pyruvate oxidation - citric acid or Krebs cycle - oxidative phosphorylation.

Cell tissue respiration

It is the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water

Cellular tissue respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products.

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Where does carbon dioxide come from during photosynthesis?

Answers

Answer:

Plants extract the carbon dioxide from the air and use it in photosynthesis process to feed themselves.

How do i do this:
Information about the four organisms can be found on the Internet. Use credible websites to find answers to the questions you developed in part A. Based on this data, draw your own dichotomous key.

Answers

Answer:

multicellular animal,plant,fungi,microorganisms

28 The statements describe four different plants.
Which plant must be a monocotyledon?
A The flowers are wind-pollinated.
B The flowers each have five petals.
The leaves are large with a clear network of veins on them.
The leaves have parallel veins.

Answers

Answer:

The leaves have parallel veins

How do ionic compounds dissolve?

Answers

If the attraction between the ions and the water molecules is great enough to break the bonds holding the ions together, the compound dissolves

Deana applies the data in the table to calculate the rate of population increase or decrease of each country. Which assumption is necessary for Deana’s calculations to be accurate?

Answers

It should be noted that population is simply used for the determination of the economic activity of an area or country.

Your information is incomplete. Therefore, an overview of population will be given. Population simply means the inhabitants of a particular place or the number of organisms living in an area.

The increase or decrease in the rate of population is calculated by the formula:

= (New population - Old population) / Old population × 100

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Which type of cloud is made up of both liquid water droplets and ice crystals?

Answers

Answer:

Altostratus clouds are gray or blue-gray mid-level clouds composed of ice crystals and water droplets. The clouds usually cover the entire sky.

Explanation:

Ba
Regarding cell walls, which of
these is the MOST accurate?
im
A. Cell walls and cell membranes are the very
same thing
B. Cell walls burst any time the cell takes in too
much water.
C. Cell walls keep a plant, bacteria or fungus cell
from bursting when too much water is absorbed

Answers

Answer:

C

Explanation:

cell wall

When water moves into a plant cell, the vacuole gets bigger, pushing the cell membrane against the cell wall. The force of this increases the turgor pressure within the cell making it firm or turgid . The pressure created by the cell wall stops too much water entering and prevents cell lysis.

Calculate the percent change of a population of geese that started with 40 individuals.
12 were born and 8 died. 6 geese immigrated into the population.

Answers

Ansew heheheheheheh

Explanation:

The vitreous humor is found in the _________.
A. Anterior chamber of the anterior segment
B. Posterior chamber of the anterior segment
C. Posterior segment
D. Optic canal

Answers

Answer:

b the posterior chamber of the eye

What is one of the results of an increase in the amount of greenhouse gases in the atmosphere?
А
increased overall ocean salinity
B
decreased global polar ice melting
с
increased overall atmospheric humidity
D
decreased global surface temperatures

Answers

Answer:

C) Increased overall atmospheric humidity

Increasing overall atmospheric humidity is the result of an increase in the amount of greenhouse gases in the atmosphere. Therefore, option C is correct.

What are greenhouse gases?

The gases that trap heat in the earth's atmosphere are referred to as greenhouse gases. The earth's surface warms during the day when the light beams through the atmosphere. The earth's surface cools at night, redistributing heat into the atmosphere. However, part of the heat is captured by the atmosphere's greenhouse gases.

Due to minute concentrations of water vapor (H2O), carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) in the atmosphere, the Earth has a natural greenhouse effect.

Increasing overall atmospheric humidity is the result of an increase in the amount of greenhouse gases in the atmosphere. Therefore, option C is correct.

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