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 WE96
Listen to an Academic Talk
Listen to part of a talk in a biology class.
Listen
44. What is the talk mainly about?
A
How new species are formed around mountain ranges
B
Why the standard definition of a species does not always work
C
How bacteria differ from other living organisms
D
Why biologists disagree about the ancestry of species