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lord [1]
3 years ago
7

Genetic variations in a population are caused by random________ .

Biology
1 answer:
irinina [24]3 years ago
3 0

Answer:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

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Easy 5th grade science please look at photo and answer!! giving brainliest
exis [7]

Answer:

What happens after water particles returns to the ocean is that it'll evaporate over the island, and precipitation happens :3

Explanation:

:3

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3 years ago
Match each statement to the type of behavior it describes.
GarryVolchara [31]

Answer:

A, C, D are responsible. B is irresponsible

Explanation:

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The following is a list of vessels. Place them in the order that blood would go through entering the systemic circulation. 1. Le
Alexus [3.1K]

Answer:

E. 3, 6, 7, 4, 5, 8, 1, 2

Explanation:

Systemic circulation is the circulatory pathway which is involved in the transport of the oxygenated blood to the body when pumped by the heart through arteries, capillaries and then back to the heart.

In the given question, the order of vessels in the systemic circulation has been asked which begins with the entry of the deoxygenated blood to the heart.

1. The deoxygenated blood enters the blood from vena cava to the right ventricle.

2. From the right ventricle, the blood enters the right atrium which pumps the de-oxygenated blood to the lungs through an artery called the pulmonary artery.

3. In the lungs, the blood becomes oxygen rich and is returned to the left atrium through the pulmonary vein.

4. The blood then enters the left atrium which is then pumped to the body through the main artery called the aorta.

This completes the systemic circulation and thus, Option-E is correct.

5 0
3 years ago
What human activities prevent the artificial ecosystem of the city park from changing?
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4 years ago
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a transmembrane segment of a membrane protein is all made up of alpha helix and contains 22 amino acids. what is the thickness o
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Nine amino acids are needed to travel through the thickness of the membrane.

Alpha-axial helix's distance between amino acids is 1.5. A

The number of gaps between the 22 amino acids in the helix is equal to (22-1) = 21.

Therefore, the helix's length is (21 X 1.5) = 31.5.

One alpha helix is sufficient to span the membrane's breadth, hence the formula is: span of the helix = thickness of the membrane = 31.5 A

The thickness of the membrane is determined by the formula above to be 31.5 AA.

In the beta-strand, there is 3.5 AA between each amino acid.

Therefore, (31.5/3.5) = 9 amino acids are needed.

Learn more about  amino acids at

brainly.com/question/28586331?referrer=searchResults

#SPJ4

6 0
1 year ago
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