QABiology › Another name for unicellular organisms that dominated Earth up to the Precambrian time is:
Q

Another name for unicellular organisms that dominated Earth up to the Precambrian time is:

A. eukaryotes.

B. cyanobacteria.

C. stromatolites.

D. prokaryotes.

A

Answer: A. eukaryotes.

Prokaryotes are unicellular organisms with no nuclear membrane-enclosed nucleus. These organisms are believed to be the origin of life and to have dominated the earth up to the Precambrian era. Prokaryotes, cells with a membrane-bound nucleus originate from eukaryotes and therefore have eukaryotes as their ancestors.

2 months ago
113 Views