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Biology 18 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 @compassionate @kennybm

OpenStudy (anonymous):

@tanya123 @thomaster

OpenStudy (tanya123):

Wow I am tagged with a Mod!!!

OpenStudy (anonymous):

haha please help!!

OpenStudy (tanya123):

The lungs begin rhythmic movement.

OpenStudy (anonymous):

Can you explain why?

OpenStudy (anonymous):

That was wrong BTW - im taking the medal back. Thanks anyways!

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