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Which type of respiration takes place when there is no oxygen present
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Biology, 22.06.2019 12:30
Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance
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Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
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How long do water vapor last in the atmosphere...
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