Because it's an outer layer protecting everything inside the body, and we are practically covered in it with few opportunities / holes where bacteria can enter to cause difference to the immune system.
Answer:
Where two tectonic plates converge, if one or both of the plates is oceanic lithosphere, a subduction zone will form. An oceanic plate will sink back into the mantle. ... But as it spreads away from the ridge and cools and contracts (becomse denser) it is able to sink into the hotter underlying mantle.
Explanation:
stay safe
What does your question mean?
Explanation:
The cell is the basic unit of life
