Answers: 3
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.
Answers: 1
Biology, 22.06.2019 15:30
Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?
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Biology, 22.06.2019 15:30
The image shows a group of fish. the type of social behavior shown in the image is called
Answers: 2
Biology, 22.06.2019 19:00
Achange in direction without a change in speed is called velocity
Answers: 1
In order to be classified in the same species, a group of organisms must be able to A. interbreed an...
Mathematics, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
History, 20.07.2019 14:30
History, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Mathematics, 20.07.2019 14:30
Biology, 20.07.2019 14:30
History, 20.07.2019 14:30