Multiple Choice
A difficulty in presenting evidence for a sixth mass extinction is
A) that tropical rain forests harbor many unknown species.
B) that species numbers are declining because of habitat loss.
C) introduction of new species.
D) increased global temperatures.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q7: The loss of ventral spines by modern
Q42: Many species of snakes lay eggs.However,in the
Q44: The history of continental drift on Earth
Q45: Records of extinctions on the planet indicate
Q46: What is true of the fossil record
Q48: What is critical to understand about the
Q49: The existence of evolutionary trends,such as increasing
Q51: Hox genes are a group of related
Q52: Which statement about the atmosphere and life
Q56: Which of these fly organs, as they