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riadik2000 [5.3K]
2 years ago
5

What is a gene?

Biology
2 answers:
tekilochka [14]2 years ago
4 0
<span>a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

D is correct!</span>
Shalnov [3]2 years ago
4 0

The answer is D. =)=) other answers explanation cause I can't explain it well.



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Answer:

There are three main types of blood vessels:

1)Artery ---

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iv) It doesn't contain any valve.

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2)Vein ---

i) It is a blood vessel having a thin wall.

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iv) It contains valves that allow the blood to flow in one direction towards the heart.

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3)Capillary ---

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Caterpillars have hair-like bristles on the back side of their bodies. the bristles can be long or short. caterpillars with shor
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