Answer:
activate memory cells is lymphocytes
engulf and digest pathogens is phagocytes
and produce antibodies is lymphocytes
Explanation:
According to the law, untreated human waste must never be dumped overboard while on inland water; it is legal to do such a thing. Untreated human waste must be stored in a reservoir. It can then be disposed at the appropriate sewage disposal point on land.
It is accepted to be fact by those who accept it to be fact, until further experimentation or research can prove otherwise
The stomata and their guard cells allows this happen.
Stomata is like a hole or gap on a leaf, most of them are present in a bottom side of the leaf, since waxy cuticle is not present over there. And 2 guard cells make up a stomata.
Guard cells are able to control the size of the stomata, depending on the situation. For example, the guard cells close up during day time because a lot of sunlight may cause more water loss.
In conclusion, guard cells and the stomata are the main structures that allow carbon dioxide and oxygen (water too) diffuse in and out of leaves.
Answer:
Mutualism
Explanation:
Mutualism: is a relationship between individuals of different species in which both individuals benefit from each other without causing no harm. Example is the nitrogen-fixing bacteria and plants.