Identifying the Functions of the Structures of the Circulatory
System
Identify the function of the labeled structures.
A
B
C
D
connects arteries and veins
brings blood back to the heart
carries blood away from the heart
pushes blood into the arteries

A: pushes blood into the arteries.

B: brings blood back to the heart.

C: carries blood away from the heart.

D: connects arteries and veins.

Explanation:

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A: pushes blood into the arteries.

B: brings blood back to the heart.

C: carries blood away from the heart.

D: connects arteries and veins.

Explanation: EDGE 2021

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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