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Which of the following are the key players in our immune system?

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Red blood cells

White blood cells

Muscle cells

Bone cells

answer is B.

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Detailed Solution

White blood cells are the key players in your immune system.

They are made in the bone marrow and are part of the lymphatic system.

White blood cells move through blood and tissue throughout the body, looking for foreign invaders (microbes) such as bacteria, viruses, parasites and fungi.

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