Question

Which of the following is a characteristic of cell communication that evolutionary scientists believe suggests cell signaling evolved early in the history of life?

a. All organisms form cell junctions to allow transfer of signaling molecules.
b. All organisms produce hormones to carry out signaling processes.
c. Plants, animals, and bacteria share very similar signaling processes.
d. Plants, animals, and bacteria use long-distance signaling molecules.

Answer 1

Evolutionary scientists believe that the similarity in signaling processes among plants, animals, and bacteria suggests that cell signaling evolved early in the history of life.

Step-by-step explanation:

The characteristic of cell communication that evolutionary scientists believe suggests cell signaling evolved early in the history of life is that plants, animals, and bacteria share very similar signaling processes.