Plants, animals, yeast, and bacteria all share very similar cell-signaling processes. Which of the following does this suggest about the evolution of cell communication in organisms?
1) Cell communication evolved before the emergence of multicellular organisms
2) Intercellular communication evolved before communication between organisms.
3) It became necessary for organisms to evolve cell communication at the same time.
4) Organisms evolved cell communication processes in response to their environment.

Question

Plants, animals, yeast, and bacteria all share very similar cell-signaling processes. Which of the following does this suggest about the evolution of cell communication in organisms? 
1) Cell communication evolved before the emergence of multicellular organisms
2) Intercellular communication evolved before communication between organisms.
3) 	It became necessary for organisms to evolve cell communication at the same time.
4) 	Organisms evolved cell communication processes in response to their environment.