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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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The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?
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Biology, 22.06.2019 11:30
_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous
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Biology, 22.06.2019 19:30
Do you think humans have a moral obligation to preserve the habitat of the chimpanzee
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What is difference between paranchyma tissues and sclernchyma tissues ?...
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