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Biology, 22.06.2019 00:30
According to the cladogram, which organisms have roundworms as a common ancestor?
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Biology, 22.06.2019 01:30
Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
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Biology, 22.06.2019 07:00
What terms describes being out of water after being submerged
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How long has the light from a star 125,000 light-years away been traveling to reach Earth?...
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