Multiple Choice
The greatest risk for prenatal defects exists when a mother contracts rubella
A) in the third month of pregnancy.
B) in the second trimester of pregnancy.
C) right before birth.
D) in the third or fourth week of pregnancy.
Correct Answer:

Verified
Correct Answer:
Verified
Q45: The neural tube eventually becomes the<br>A)spinal cord.<br>B)optic
Q46: According to your text,the risk of early
Q47: _ is the name given to the
Q48: The circulatory system develops from the<br>A)ectoderm.<br>B)mesoderm.<br>C)endoderm.<br>D)trophoderm.
Q49: Tom and Jenny have been trying unsuccessfully
Q51: The zygote attaches to the uterine wall
Q52: The endoderm,ectoderm,and mesoderm form during the _
Q53: Scenario: Janise,who is African American,is living in
Q54: Which of the following terms refers to
Q55: _ has been linked with high infant