Females that are exposed to __________ in utero are more likely to display homosexual behavior.
a. TDF.
b. Estrogen.
c. Diethylstilbestrol.
d. Copulins.
Question 2
What type of sperm blocks and attacks sperm from other males?
a. Warrior sperm.
b. Whale sperm.
c. Defensive sperm.
d. Kamikaze sperm.