Skip to content
Prep
Freely
Home
TOEFL
IELTS
Guides
Log in
Sign up
P
Account
Profile
My progress
Settings
Log out
TOEFL
/
Listening practice
/ Section 45K6
Listen to an Academic Talk
Listen to a talk in a biology class.
Listen
43. What does the professor find most remarkable about the relationship?
A
It has been studied for many centuries.
B
It benefits only the humans.
C
It involves a wild animal cooperating with people.
D
It exists only in Mozambique.