In what way does the skull of a haplorhine differ from that of a strepsirhine?
a. Strepsirhines have enlarged brains.
b. Haplorhines have unfused mandibles.
c. Strepsirhines lack tooth combs.
d. Haplorhines have enclosed eye orbits.
Question 2
What event occurred between 58 and 40 million years ago?
a. The first primates appeared.
b. The first monkeys appeared.
c. The first lemurs appeared.
d. The first hominins appeared.
