The continuous, low-level extinction rate of species is sometimes called:
A) mass extinction.
B) minimal extinction.
C) selective extinction.
D) temporal extinction.
E) background extinction.

Question

Quizplus · Accepted Answer

Background extinction refers to the standard rate of extinction in earth's geological and biological history before humans became a primary contributor to extinctions. It contrasts with mass extinctions, which involve widespread and rapid loss of species.

The Continuous, Low-Level Extinction Rate of Species Is Sometimes Called