What is the best replacement for the underlined word below:

The males, which are smaller than the females, have evolved into _parasitic_ mates.

a. married

c. antitoxin

b. leechlike

d. camouflaged

b leechlike

Explanation:

b leechlike

Explanation:

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.