The immune system and the nervous system maintain extensive communication, including 'hardwiring' of sympathetic and parasympathetic nerves to lymphoid organs. Neurotransmitters such as acetylcholine, norepinephrine, vasoactive intestinal peptide, substance P and histamine modulate immune activity.
Answer:
cell wall and chloroplasts
Explanation:
its B!! :) cell wall in plant cells, cell membrane in animal cells.
I would have to say the second stage of life
Answer:
Jellyfish and the Portuguese man-of-war
Explanation:
I just took the quiz
