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Author Question: Irina is in her first week of pregnancy. During this time, __________. A) heart muscles begin to ... (Read 124 times)

Lisaclaire

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on: Jun 22, 2018
Irina is in her first week of pregnancy. During this time, __________.
 
  A) heart muscles begin to develop
  B) the zygote multiplies and forms a blastocyst
  C) a primitive brain and spinal cord appear
  D) the embryo can move

Question 2

The embryonic disk __________.
 
  A) becomes the new organism
  B) is the outer ring of cells on a blastocyst
  C) has a good chance of survival outside the womb
  D) is a protective membrane that surrounds the amnion


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yasmina

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Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A


Lisaclaire

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Reply 2 on: Jun 22, 2018
Gracias!

Liddy

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Reply 3 on: Yesterday
Wow, this really help

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