Answer:
you gotta sho me the options
Explanation:
I believe the answer is: Nitric oxide
<span>Nitric oxide could be synthesized on demand, because it is considered to be membrane permeant that cannot be stored. Calcium influx through </span><span>The N-methyl-D-aspartate </span>receptor activates nitric oxide synthase (NOS), which synthesizes Nitric oxide from L-arginine which allow it <span> to act as a retrograde messenger from the dendrite to the terminal button. </span>
Answer:
an animal that feeds on flesh
He was responsible for proposing the three laws of motions
It granted citizenship to all people, including African Americans.