Growth and Development Exam

Question 1 of 46

An ovum bursts from one of a woman's two __________ and is drawn into one of two __________.

A. ovaries; testes

B. fallopian tubes; ovaries

C. corpus luteum; fallopian tubes

D. ovaries; fallopian tubes

Correct Answer:

Rationale:

Question 2 of 46

The embryonic disk __________.

A. becomes the new organism

B. is the outer ring of cells on a blastocyst

C. has a good chance of survival outside the womb

D. is a protective membrane that surrounds the amnion

Correct Answer:

Rationale:

Question 3 of 46

The yolk sac __________.

A. forms during the third trimester of pregnancy

C. produces blood cells until the organs are mature enough to take over this function

D. contains one large vein that delivers blood loaded with nutrients and two arteries that remove waste

Correct Answer:

Rationale:

Question 4 of 46

During the period of the embryo, the __________ becomes the __________.

A. mesoderm; nervous system, lungs, internal organs, and skin

B. chorion; endocrine system, muscles, placenta, and skeleton

C. ectoderm; circulatory system, skin, skeleton, and internal organs

D. endoderm; digestive system, lungs, urinary tract, and glands

Correct Answer:

Rationale:

Question 5 of 46

By the twelfth week of pregnancy, __________.

A. the sex of the fetus can be detected with ultrasound

B. the mother can feel the movements of the fetus

C. the fetus is viable and can survive if born early

D. synchrony between fetal heart rate and motor activity peaks

Correct Answer:

Rationale:

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