What is one distinguishing feature of all mammals a. amniotic egg with hard shell b. feeding young with milk c. hard, scale skin d. very light skeletons plz

How can an organ, such as the lungs, work for multiple body systems?

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged