Author Question: The formation of a primitive heart would take place during the _____ period of development. a. ... (Read 41 times)

Jipu 123

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The formation of a primitive heart would take place during the _____ period of development.
 
  a. zygotic
  b. germinal
  c. fetal
  d. embryonic

Question 2

What is the most important factor in determining what crosses the placental barrier?
 
  a. The size of a molecule
  b. The age of the fetus
  c. The duration of the pregnancy
  d. The age of the mother



SVictor

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Answer to Question 1

d

Answer to Question 2

a



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