Helper T cells are very important cells in the adaptive immunity. They are required for almost all adaptive immune responses and They also help activate cytotoxic T cells and macrophages to attack infected cells.
I hope this helped, Good Luck!!
Because to actually use the word evolve an organism must suffice more than one condition, which in this case would be an advantageous trait. Having an advantageous trait (from our eyes at least) must also include the right and stimulating enviironment for procreation. So this answer is multifolded.
law is any concept that is true and real while theory is a concept which nobody can tell weather it is true or false
for eg :
Law- every action has equal and opposite reaction
(It is law because it is proven)
Theory- Big bang theory
(no one no it true or false)
D. He has an aerator that pumps bubbles into the tank
Answer:
im pretty sure the answer is Eukarya.
