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Biology, 22.06.2019 07:00
Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
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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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Biology, 22.06.2019 19:30
Why are lipids and proteins free to move laterally in membranes?
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Biology, 22.06.2019 21:00
The type of fossil where the name literally means "turning to stone".
Answers: 1
Match the human activity and how it increases the greenhouse affect
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