What can happen when two plates boarding each other suddenly move and release energy? a) earth's crust shakes. b ) lava erupts. c) a trench is formed. d) mountains are created.

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