Multiple Choice
Teratogens are substances that
A) stimulate embryonic growth.
B) cause birth defects.
C) protect against infection.
D) prevent accumulation of cholesterol.
E) cause genetic disease.
Correct Answer:
Verified
Correct Answer:
Verified
Q21: Amniotic fluid<br>A) stores nutrients for the fetus.<br>B)
Q22: Tanisha and Tawanda are twins but do
Q23: The female gonads are the<br>A) ovaries.<br>B) oocytes.<br>C)
Q24: The zona pellucida is<br>A) a protective layer
Q25: During the first meiotic division<br>A) sperm and
Q27: Meiosis is necessary because otherwise<br>A) the fertilized
Q28: Synapsis occurs during<br>A) prophase I.<br>B) metaphase I.<br>C)
Q29: During meiosis II in sperm development<br>A) spermatogonia
Q30: The number of sperm cells in an
Q31: The allantois<br>A) destroys old blood cells.<br>B) gives