I believe it is E and C. Hope this helps!! Brainleist Please!!!
Answer:
Norepinephrine
Explanation:
Nerve cells and circulating hormones are the one responsible for vasoconstriction of the vessel walls, as they do not enter the tunica media of the blood vessel, the nerves do not synapse directly on the smooth muscle cells. Instead, they release the neurotransmitter, norepinephrine, which diffuses into the media and acts on the nearby smooth muscle cells, which result in contraction of the entire muscle cell layer and thus reducing the radius of the vessel lumen.
A biological community of interacting organisms and their physical environment.
Carbon is very important because Trees take it (Co2) in in order for oxygen to be produced.
All plants for the most part take in Co2 so that they can produce oxygen,
and we need that oxygen to live , to pump blood into our lungs so we can roam around.
It is basically one of the main components of our every day life on Earth.
I really hope this helps you a lot.
Abiogenesis is another name for spontaneous generation.
