Question

Based on the information in the chart, during which eon would you expect to find fossil evidence about the evolution of insects? A) Phanerozoic B) Proterozoic C) Archean D) pre-Archean

Answer 1

Answer:

A) Phanerozoic

Explanation:

In the given question, the chart about the evolution of insects has not been provided but based on the previous knowledge, this question can be answered.

The geologists have divided the time scale into many variables in which Eon represent the longest time scale period which has lasted for the millions of year.

The Phanerozoic eon represents the time scale during which first visible life evolved and began around 542 million years ago and is present until today. The insects belong to the arthropod group which evolved during a smaller time scale called Devonian period.

Since the insects evolved around 479 million years ago which falls under the Phanerozoic eon, therefore, phanerozoic is the correct answer.

Thus, Option-A is correct.