Option 3
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The breakdown of tertiary and quartinary structures in a protein, a change in the active site
<span>b. a cell takes in DNA from outside the cell.</span>
I believe the answer is chromatid, although I'm not entirely sure.
Answer:
most of the hydrosphere is salt water – around 97 percent – but the 3 percent that is fresh is critical for terrestrial and fresh water species
Explanation:
