Biology, 30.03.2020 20:28 knownperson233
Which of the following pairings of phylum and description is incorrect? A Echinodermata—bilateral symmetry as a larva, coelomate B Nematoda—roundworms, pseudocoelomate C Platyhelminthes—flatworms, gastrovascular cavity, acoelomate D Porifera—gastrovascular cavity, coelomate
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Biology, 22.06.2019 11:00
What happens during the experiment stage of the scientific method
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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 17:00
In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him
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Which of the following pairings of phylum and description is incorrect? A Echinodermata—bilateral sy...
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