Vitamin D mostly helps the body absorb calcium (which we need for strong bones) and helps keep immune systems strong. Vitamin D deficiency leads to more flu and colds, fragile bones, weak muscles, high blood pressure and depression. Deficiency can lead to hundreds of diseases.
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Answer:
d) It binds to intracellular receptor.
Explanation:
Nitric oxide is a compound produced by many cells of the body. It relaxes vascular smooth muscle by binding to the heme moiety of cytosolic guanylate cyclase(intracellular receptor) ,activating guanylate cyclase and increasing intracellular levels of cyclic-guanosine 3',5'-monophosphate, which then leads to vasodilation.
Answer:
B
Explanation:
The Earth is tilted 23.5 degrees on its vertical axis. During the northern hemisphere's spring and summer, the northern hemisphere is tilted towards the Sun.
