They are things that are non living. These include water, rock, soil, sunshine, air, wind, and any other items we use that isn't alive (cellphones, TV, furniture, clothes, etc.). Biotic factors are opposite of this. These include anything living like humans, dogs, plants, etc.
Adaptive immunity is based upon the interactions between specific immune system cells and a specific antigen. This happens when cell surface of B cell binds to antigen thus lead to activating B cells. Hope this is the answer and this would help.
Answer: When a blood vessel contracts for a short period of time.This constriction can contract small vessels completely and avoid the flow of blood through them.
Explanation:
Answer:
Microbes in the compartments of ruminants and the ruminants live in mutualistic relationship.Justify
The medial indentation on the kidney called hilum....
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