What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?
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
Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i