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Biology, 03.02.2021 07:20 karamalqussiri478

2. The immune systems is built of millions of cells called: a. Erythrocytes (red blood cells)
b. Immune cells
c. Leukocytes (white blood cells)
d. Lymphocytes

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2. The immune systems is built of millions of cells called: a. Erythrocytes (red blood cells)
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