In a pond ecosystem, what generally happen over a long period of time?
A) The pond will fill in, grasses and trees will grow there
B) It will become deeper than a lake.
C)The water will become stagnant and everything in the pond will die.
B)The pond will become filled with fish.

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis

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

You are shown 2 samples of the earthes crust . the first is denser than the second . which most likley is oceanic crust