<span>The greatest concentration of nitrogen on the Earth is found in its atmosphere. The atmosphere is approximately 78 percent nitrogen. and second one bacteria</span>
Answer:
2. blood vessels under the skin expand
Explanation:
i just took that quiz and i got it right :)
Answer:
SIV or Simian immunodeficiency virus
Explanation:
It causes a disease in monkeys similar to AIDS and is closely related to HIV-2 of humans.
That would be skeletal muscle, which is also a voluntary muscle.
