Home
New TOEFL IBT Pratice Test #006
New TOEFL IBT Pratice Test #006
Listening | Question 16 of 16
Listen to an Academic Talk
Why does the professor mention a "co-evolutionary arms race"?
A) To describe competition for food between different species.
B) To explain why cuckoos are becoming less successful.
C) To illustrate the conflict between male and female cuckoos.
D) To characterize the ongoing adaptations of hosts and parasites.