Which pair includes rocks and sediments A atmosphere B biosphere C geo sphere D hydrophere

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

How are primary producers important to the alligator's energy supply

Do fish feel pain? and if they do what pain