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UkoKoshka [18]
3 years ago
11

HELP ME! Gold medal if you help and its right!!!

Biology
2 answers:
4vir4ik [10]3 years ago
6 0
C)set maximum contaminant levels for pollutants in drinking water
antoniya [11.8K]3 years ago
6 0
For number 17 is uranium  an number 18 is <span>fossil fuel</span>
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2. Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for example. Gene regulation also allows cells to react quickly to changes in their environments.

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