madisonb04101
madisonb04101 madisonb04101
  • 12-05-2017
  • Biology
contestada

Which of the following events occurred during the first trimester?

A. Heart beat begins

B. Lungs fully develop

C. Bones become solid

D. Fetus moves and kicks and swallows

Respuesta :

bearstopsblake2
bearstopsblake2 bearstopsblake2
  • 12-05-2017
I believe that the answer to your question would be A. Heart Begins.
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