In a new trial to test the effectiveness for a new type of medicine, why is it necessary for one group to receive a placebo?

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

Is a fossil fem that support wegener's hypothesis of continental drift a. gondwanded b. kannemerid c. mesosaurus d. glossopters

How do specific cell structures and organelles contribute to maintaining homeostasis in the cell?