Biology, 03.01.2020 02:31 sierram298
Most female frogs lay their eggs in water. male frogs release their sperm into the water to fertilize the eggs, this is an example of?
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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 04:00
Number and variety of living organisms includes genetic, species, and ecological types
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Biology, 22.06.2019 10:50
Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above
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Most female frogs lay their eggs in water. male frogs release their sperm into the water to fertiliz...
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