Answer:
They protect the body from infectious agents.
And
They signal the immune system to destroy pathogens.
Explanation:
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The answer is Law of Dominance
Answer:
Colloids or colloidal solutions are mixtures in which microscopically dispersed insoluble particles of one substance are suspended in another substance. The size of the suspended particles in a colloid can range from 1 to 1000 nanometers (10-9 meters).
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