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The top documents tagged [precursor t cells]
THE IMMUNE SYSTEM. Although the innate and adaptive immune systems both function to protect against invading organisms, they differ in a number of ways
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Inverse Grid2-6 中枢免疫器官 ( Central lymphoid organ )
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Aim: How do vaccinations protect us against disease ? Immunity is the ability of an organism to resist disease by identifying and destroying foreign substances
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