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frosja888 [35]
3 years ago
9

During which stage of fetal development do the heart and lungs of a fetus become fully developed and functional?

Biology
1 answer:
Elena L [17]3 years ago
7 0

Answer:

C.

Explanation:

The fetus will develop a set of lungs in the 36th week, which is the third trimester

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Explanation:

In the given question,

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