The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
Answer:
crust, outer mantle, inner mantle, and core
Explanation:
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Compounds microscope is an optical instrument for forming magnifying images of small objects having an objective Len with a very short focal length. While electron microscope is a high power of microscope uses beam of electron focused by magnetic lenses instead of rays of light.
Answer:
The first step of investigation is to verify the existence of the infectious disease outbreak
Explanation:
