Why are fossils of early life on Earth rarer than fossils of plants and animals from the past few hundred million years?
A) Early organisms lacked skeletons and other hard structures that are most likely to be fossilized.
B) Life was far less abundant prior to a few hundred million years ago.
C) Fossils could not form before there was oxygen in the atmosphere.
D) We find fossils in sedimentary layers, and no sediments were deposited until just a few hundred million years ago.

Question

Quizplus · Accepted Answer

Early organisms lacked skeletons and other hard structures that are most likely to be fossilized.

Why Are Fossils of Early Life on Earth Rarer Than