A human embryo doesn't need the kind of yolk that is present in a chick embryo. Explain.
A. It doesn’t need any nourishment.
B. It gets its nourishment from its mother.
C. It can synthesize its own food.

B

Explanation:

It gets its nourishment from it's mother. The human embryo is connected to it's mother by a placenta through which materials are passed.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

i think the answer would d