The current rate of extinction may be as much as ________ times higher than at any other time in the past 100,000 years.

Question

Quizplus · Accepted Answer

The current rate of extinction is estimated to be between 1,000 and 10,000 times higher than the natural extinction rate, which is the rate that would occur if humans were not impacting ecosystems. This is based on comparisons to the fossil record, as well as current extinction rates for various groups of species. Therefore, choice C, 1,000, is the best answer.

The Current Rate of Extinction May Be as Much as ________