The problems of survival of animals on land are very different from those of survival of animals in an aquatic environment. what are four problems associated with animal survival in terrestrial environments but not in aquatic environments?

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from