Suppose that multicellular life had never evolved on Earth.Which characteristic would be absent in the life forms observed today in that case?
A) The ability to carry out photosynthesis
B) The ability to move about
C) The ability to prey on other organisms
D) The ability to digest food molecules
E) Nervous systems

Question

Quizplus · Accepted Answer

The absence of multicellular life means that there would be no complex organisms with specialized cells and tissues. Therefore, nervous systems, which require specialized cells and tissues to function properly, would be absent in the life forms observed today. Options A, B, C, and D are all possible in unicellular organisms or simple multicellular organisms.

Suppose That Multicellular Life Had Never Evolved on Earth