Biology, 09.10.2021 23:00 danksans4912
Cho biết A: cây cao, a: cây thấp. Cho lai cây cao với cây cao thì kiểu gen, kiểu hình ở đời f1 như thế nago
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Biology, 22.06.2019 01:00
Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.
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Biology, 22.06.2019 13:00
The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called
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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.
Answers: 1
Biology, 22.06.2019 14:30
Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.
Answers: 2
Cho biết A: cây cao, a: cây thấp. Cho lai cây cao với cây cao thì kiểu gen, kiểu hình ở đời f1 như t...
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