Answer:
A theory is a group of hypotheses that prove a law is true.
Explanation:
A theory is an idea based on principles. A hypothesis is an explanation with limited evidence. Laws are the system of rules indicated for each country.
They provide the immune system with "memory" against previously encountered pathogens.
T memory cells are necessary for protective immunity against invading pathogens
an accurate growth of what?
I believe that they’re norepinephrine (NE), and the acetylcholine (Ach). Hope this helps!
I’m sorry but i need the points so I’m just gonna yea the answer is D because it is