18
QuizMultiple Choice
Unit Test — Unit test
Question 18 of 25 • CA-Integrated Science 8 B
The picture shows the skull of an extinct aquatic animal and the skull of a present-day gray whale. Further testing of the skulls suggests that the extinct animal is an ancestor of the gray whale.
Answer
A
by showing that all populations can adapt and surviveB
by showing that only some organisms have common ancestorsC
by showing that populations change slowly over timeD
by showing that species can rapidly become extinct