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Author Question: Substances that come in contact with the fetus through the mother and interfere with normal ... (Read 52 times)

pepyto

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Substances that come in contact with the fetus through the mother and interfere with normal development are called
 
  a. teratogens. c. carcinogens.
  b. allergens. d. estrogens.

Question 2

Birth defects occur in about ________ of all newborns.
 
  a. 0.5  c. 3 to 5
  b. 1 d. 5 to 10



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tofugiraffe

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Answer to Question 1

A

Answer to Question 2

C





 

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