Evidence of life left in the geological record is known as
A) biosignatures.
B) genetic markers.
C) abiotic artifacts.
D) enzyme markers.
E) molecular weight markers.

Question

Quizplus · Accepted Answer

Biosignatures are physical or chemical characteristics of rocks or sedimentary structures that indicate the presence of past or present life. These may include fossils, isotopic ratios, and other evidence that can be used to infer the presence of biological activity.

Evidence of Life Left in the Geological Record Is Known