skybabe8608 skybabe8608

01-07-2021
Biology

contestada

Select the correct answer. During which stage of fetal development do the heart and lungs of a fetus become fully developed and functional? A. first trimester B. second trimester C. fertilization D. third trimester

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Kaybe06 Kaybe06

01-07-2021

Answer: B the second trimester

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