Biology, 01.11.2019 03:31 alexedwards307
What direct effect do histamines have on capillaries? a) they decrease the diameter of capillaries. b) they prevent phagocytes from sticking to the walls of capillaries. c) they allow capillary walls to open and become leaky.
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Biology, 22.06.2019 07:00
Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false
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Biology, 22.06.2019 18:30
Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i
Answers: 3
Biology, 22.06.2019 19:50
Select the correct answer from each drop-down menu the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that the archaeopteryx and bird have wings, while dinosaurs have limhe se it can be concluded that
Answers: 3
What direct effect do histamines have on capillaries? a) they decrease the diameter of capillaries....
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