Buffer?
<span>A buffer is the substance that prevents rapid or large swings in pH
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I think the answer may be D. But don’t answer yet, I may be wrong.
Biologists do not fully understand DNA because there are constant changes and new discoveries developing.
It can be a heat insulator, which means it can trap heat in and reduce heat loss to keep us warm.
it can also protect organs, it can act as a shock absorber
