What is the main function of structural adaptations?

a. they the organism survive in its environment.

b. they the organism find a mate in other environments.

c. they serve no useful purpose.

d. they provide a home for the organism.

Is there any danger to eating mold?

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .