What are adaptive defenses?​

adaptive defense consists of antibodies and lymphocytes, often called the humoral response and the cell mediated response. The term 'adaptive' refers to the differentiation of self from non-self, and the tailoring of the response to the particular foreign invader.

Explanation:

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c. will be your answer sorry if im wrong tho

answer(b) keep oxygenated and deoxygenated blood separate;