Answer:
Number 3
Explanation:
Number 3 or C is correct, "action of white blood cells when certain bacteria enter the body." This is the correct answer because white blood cells are in your body to fight off infections. some peoples immune system see these bacteria on the peanut, egg, or milk as an enemy so it tries to fight against it even though it is harmless to the body.
Answer:
Sociology's purpose is understanding how human action and consciousness both shape and are shaped by surrounding cultural and social structures.
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Answer:
The physical and chemical properties of a compound differ from its component elements.
Explanation:
