The gradualism model of evolution says that gaps in the fossil record are due to:
A) poor research.
B) geological catastrophes.
C) sudden genetic change. Because very few of the intermediate forms existed, it is not unusual to have found none fossilized.
D) the fact that most organisms never become fossilized.

Question

Quizplus · Accepted Answer

The gradualism model of evolution suggests that evolutionary changes occur slowly and steadily over long periods of time. The gaps in the fossil record, according to this model, are primarily due to the rarity of fossilization; most organisms do not become fossilized, leading to incomplete fossil records.

The Gradualism Model of Evolution Says That Gaps in the Fossil