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Biology 7 Online
OpenStudy (anonymous):

Which of the following would occur the earliest in the development of a human fetus? Nervous system begins to control body functions Organs in the digestive system form. Bone replaces cartilage in the skeleton The lungs begin rhythmic movement

OpenStudy (anonymous):

@aceace

OpenStudy (anonymous):

abcd format again...?

OpenStudy (anonymous):

Yess

OpenStudy (anonymous):

it is D lungs move rhytmically to help develop the respiratory system

OpenStudy (anonymous):

Thanks:DDDD

OpenStudy (anonymous):

no probs

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