Biology, 05.11.2019 00:31 neylabaker7489
Aparticular species of fish were split by the formation of the isthmus of panama a long time ago . the fish developed changes in their genes to adapt to the new environment and became two different species. what is this process called ?
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Ture or false evidence for evolution includes millions of fossils
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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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Biology, 22.06.2019 20:10
Describe surface tension in a group of bonded water molecules
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Aparticular species of fish were split by the formation of the isthmus of panama a long time ago . t...
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