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Adrian caught a virus while staying with his grandmother. A few years later, his mother and sister got the same virus. This virus could spread through touch and direct contact. However, Adrian did not contract the virus this time, even though he was living with his mother and sister. Why did he not get sick?
Adrian’s adaptive immunity remembered the antigens from the virus and gave him lifelong immunity to it.
Adrian’s innate immunity remembered the antigens from the virus and gave him lifelong immunity to it.
Adrian’s skin layer recognized the antigens and attacked them, which prevented the occurrence of the virus again.
Adrian’s innate immunity identified antibodies specific for the virus and targeted them against the antigen.
Adrian’s adaptive immunity produced a higher amount of specific antibodies for the antigen, preventing the virus.
Answers: 3
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The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?
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Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.
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When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis
Answers: 2
Select all the correct answers.
Adrian caught a virus while staying with his grandmother. A few yea...
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