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Author Question: When two ova are released and both are fertilized by a sperm, what type of twins result? a. ... (Read 44 times)

jc611

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on: Jun 22, 2018
When two ova are released and both are fertilized by a sperm, what type of twins result?
 
  a. Fraternal twins
 b. Identical twins
 c. Either fraternal or identical twins
 d. Neither, only one egg at a time can be fertilized and twins result if that egg splits in two.

Question 2

The role of the placenta is to:
 
  a. Supply nutrients to the developing fetus.
 b. Aid in respiratory and excretory functions of the fetus.
 c. Secrete hormones necessary for the continuation of the pregnancy.
  d. All of these


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mk6555

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

a

Answer to Question 2

d


jc611

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Reply 2 on: Jun 22, 2018
Wow, this really help

xiaomengxian

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Reply 3 on: Yesterday
Gracias!

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