How long between the evolution of single versus multicellular organisms?
A)4.5 billion years
B)2.5 billion years
C)one billion years
D)600 million years
E)63 million years

Question

Quizplus · Accepted Answer

The evolution of single-celled organisms is estimated to have occurred around 3.8 billion years ago, while the evolution of multicellular organisms is estimated to have begun around 1.2 billion years ago, making the time span between the two approximately 2.5 billion years. The evolution of single-celled organisms began around 3.8 billion years ago, while the evolution of multicellular organisms is estimated to have begun around 1.2 billion years ago. This means there was approximately 2.5 billion years between the evolution of single and multicellular organisms.

How Long Between the Evolution of Single Versus Multicellular Organisms