Hello there
<span>The Clean Water Act does not ensure high water quality throughout the nation because it does not have a means of enforcement.
I believe the correct option is A
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Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
Virbrant energy it is used also make glucose
D. homologous chromosomes pair up
