It's D because it's found in the <span>cell's plasma membranes (at high concertration levels)
Hope this helps!! :-)</span>
<span>The most significant characteristic of sexual reproduction is the fact that the offspring's traits/ characteristics are not identical to the parents' traits. So, there is a variety of looks and traits passed down.
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Chemical energy...................
The came too fast.
During the 20th century the canal water efforts to create major changes in South Florida landscape. The leeve-canal in Evergrade failed to improve the wetland habitat, a canal was constructed to drain and reclaim the wetlands.
They are paired, placed in launae and have canaliculi to receive and send nutritive materials to matrix.