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polet [3.4K]
3 years ago
9

Which of these is not a part of the immune system? A. bone marrow B. spleen C. heart D. thymus

Social Studies
1 answer:
antiseptic1488 [7]3 years ago
3 0

The answer is= c.) The heart

Explanation= the thymus, spleen, and bone marrow are all apart of the immune system

(Brainliest would be appreciated)

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