Chaoter 3

Question 1

Prenatal development is commonly described in terms of trimesters. What are trimesters

Answer 1

This breaks up the 9 months of the mother’s pregnancy into three 3-month segments.

Question 2

A more useful way of conceptualizing prenatal development is to divide it into three periods

Answer 2

the germinal, the embryonic, and the fetal period

Question 3

What are two Ways to Describe the Prenatal Period*

Answer 3

Trimester & Developmental period

Question 4

Break up the three trimesters, and include the specific amount of weeks

Answer 4

First trimester (weeks 1 to 13)
Second trimester (weeks 13 to 25)
Third trimester (weeks 25 to 38)

Question 5

Break up the developmental period

Answer 5

Germinal period (conception through week 2)

Embryonic period (weeks 3 through 8)

Fetal period (weeks 9 through 38)

Question 6

The development of a unique human individual begins with

Answer 6

fertilization

Question 7

True or false: About the size of the period at the end of this sentence, a one-celled, fertilized egg carries all of the genetic information necessary to create an entirely new organism.

Answer 7

True