Which of the following is true regarding extinction?

a. Extinction that occurs in a relatively short period of time is referred to as background extinction.

b. Single events or several causes working together to produce extinction in a short period is referred to as mass extinction.

c. If the rate of speciation in a clade is equal to or less than the rate of extinction, the clade will survive.

d. The rate of extinction is steady from clade to clade as are the number of species contained within a clade.

Question

Alani Russell

11 October, 20:24

+2

Answers (2)

Know the Answer?

Tony Warren · Answer 1

B. because a mass extinction is caused by several causes to force a group of organisms to die.

Moriah Chavez · Answer 2

b. Single events or several causes working together to produce extinction in a short period is referred to as mass extinction.