Question

What is the best description of organisms of the Precambrian era?

A . land plants and animals
B . Dinosaurs and primates pice mammals
C . Single celled organisms and soft, boneless animals
D . Ferns and flying reptiles

Answer 1

C- Precambrian time was way before evolution into more complex plants and animals. Back then, organisms were single celled and simple.

Answer 2

Option C, Single celled organisms and soft, boneless animals

Step-by-step explanation:

The Precambrian era refers to the first geologic time frame and thus it refers to time frame which is some billion years old. During Archean period of Precambrian era, single celled /unicellular and simple form of organisms originated such as protozoans (including amoeba, euglena, and paramecium). These organisms developed with time and by the late Precambrian era soft bodied multi-cellular organisms like jellyfish, worms . moss etc. originated.