Scientists hypothesize that prokaryotes evolved before eukaryotes because
A) prokaryotic cells lack nuclei.
B) the meteorites that have struck Earth contain fossils only of prokaryotes.
C) laboratory experiments have produced ribosomes abiotically.
D) ribosomes closely resemble prokaryotic cells.
E) the oldest fossilized cells resemble prokaryotes.

Question

Quizplus · Accepted Answer

The oldest fossilized cells found resemble prokaryotes. This suggests that they evolved before eukaryotes. The other options do not necessarily provide evidence that prokaryotes evolved before eukaryotes.

Scientists Hypothesize That Prokaryotes Evolved Before Eukaryotes Because