Question Detail

ZOO 102 Animal Diversity, Phylogeny, and Vertebrate Structure Objective Question

Question

According to evolutionary history, approximately how long have animal forms been undergoing adaptation and diversification?
Options
A Over 600 million years
Correct Answer
B Approximately 100 million years
C Over 1.4 billion years
D Exactly 50 million years
Correct Answer

Option A is the correct answer.

Detailed Explanation

The source states that evolutionary history spans over 600 million years, leading to the current variety of body plans. A distractor like 1.4 billion might be confused with the number of described species.

Hint

Consider the timeframe mentioned in the introduction regarding the timeline of animal evolution.

Question Info