Question

multiple choice 1 point
scientists estimate that approximately what percentage of all species that ever lived are now extinct?
over 99%
less than 10%
50%
75%
previous

Explanation:

Based on scientific research and understanding of the history of life on Earth, it is known that over geological time, a vast majority of species have gone extinct. This is due to various factors such as mass extinctions (e.g., the Permian - Triassic extinction event), environmental changes, and competition.

Answer:

Over 99%