Answer:
The Tunica Media
Explanation:
Usually referred as the middle layer, it helps regulate blood flow and pressure.is a support for the vessel.Hope this helps:)
Answer:
They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.
Explanation:
P<span>atients who cannot afford to purchase bone marrow will have to wait for voluntary donors.</span>
D colors of UV rays separate base on on their wavelength
