Some scientists suggest that chemical messengers coordinating __________ may have initially evolved in single-celled organisms.

Question

Quizplus · Accepted Answer

Chemical messengers coordinating reproduction or feeding would have been crucial for the survival and proliferation of single-celled organisms, as well as for the evolution of multicellularity. Molting or regeneration are processes more commonly associated with animals, while autotomy (self-amputation) and neoteny (retention of juvenile characteristics in adulthood) are not necessarily dependent on chemical messengers. Thermoregulation and growth can be regulated by chemical messengers but may not have been as important for single-celled organisms as reproduction and feeding.

Some Scientists Suggest That Chemical Messengers Coordinating __________ May Have