Calcium is one of the most important minerals for the human body. It helps form and maintain healthy teeth and bones.
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Function
-Building strong bones and teeth.
-Clotting blood.
-Sending and receiving nerve signals.
-Squeezing and relaxing muscles.
-Releasing hormones and other chemicals.
-Keeping a normal heartbeat.
The correct answer is D. The theory of natural selection provided a better explanation of the processes that were being observed by the scientists.They observed that the related species birds found on one island were slightly different from that of the other, and certain portions earth, have the species, which were not found anywhere else.
Answer:
The correct answer would be C, burning of wood and coal
Explanation:
The burning of fossil fuels (coal, oil, natural gases) increases the greenhouse gases in the atmosphere.
Answer:
Cellulose gives strength to cell.
Explanation:
Cellulose is a type of polysaccharide which is present in the cell wall of plant. It provides strength to the cell. It also helps in the absorption of water molecules from the surrounding environment.
Cellulose is composed of 44.44% of carbon atom, 6.17% hydrogen atom, and 49.39% oxygen atom. The chemical formula of cellulose is (C6H10O5)n.
This might help
Calvin Cycle
<span>uses ATP & NADPH from the light-dependent reaction to produce glucose. Takes place in the stroma & does not require light</span>
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