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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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bekah02 bekah02
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6 years ago
About a week after conception, the outer layer of the multiplying cells forms a protective circle or shell that will become the
 
  placenta.
  umbilical cord.
  vernix.
  infant.

Question 2

Implantation begins approximately how long after conception?
 
  5 days
  10 days
  two weeks
  one month

Question 3

How long is the fetal period?
 
  the last three months before the child's birth
  from the midway point of prenatal development until birth
  from the second until the eighth week after conception
  from nine weeks after conception until birth

Question 4

The longest period of prenatal development is the:
 
  embryonic period.
  fetal period.
  first trimester.
  germinal period.

Question 5

By one week after conception, the multiplying cells have divided into outer cells enclosing a mass of inner cells. The inner cells will become the
 
  embryo.
  amnion.
  placenta.
  digestive system.
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Jango4445Jango4445
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6 years ago
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bekah02 Author
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#2
6 years ago
Helps a lot <3 Now I'm ready for my quiz
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