How does the circulatory system work at the organ level? The heart pumps the blood.

Cardiac muscle contracts.

Blood cells carry nutrients.

Nutrients are delivered throughout the body.

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation:

answer; autosomal;

z is the answer.

(sorry caplock) lol

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