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. nextreset
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Biology, 22.06.2019 07:00
Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.
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Adrian caught a virus while staying with his grandmother. a few years later, his mother and sister g...
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