Extinction _____.
A.only happens above the species level
B.cannot happen to more than one species at a time
C.has happened to over 99% of species that ever lived on earth
D.happens when a species or population dies out
Extinction: has happened to over 99% of species that ever lived on earth.
Question
Asked 11/2/2010 9:08:38 AM
Updated 8/26/2014 3:11:55 PM
1 Answer/Comment