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The core of the immune system is made up of

red blood cells.

platelets.

white blood cells.

intact skin.

intact mucus membranes.

User Shalena
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2 Answers

4 votes

Answer:

red blood cells

Step-by-step explanation:

white blood cells are used for fighting against diseases

User Mantramantramantra
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The answer is White blood cells
User Tschwab
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