Approximately how long between the evolution of single versus multicellular organisms?
A) 4.5 billion years
B) two billion years
C) one billion years
D) 600 million years
E) 63 million years

Question

Quizplus · Accepted Answer

The evolution from single-celled to multicellular organisms took approximately two billion years. Single-celled organisms emerged around 3.5 to 3.8 billion years ago, while multicellular life forms started to appear about 1.5 billion years ago.

Approximately How Long Between the Evolution of Single Versus Multicellular