Answer:
f
Explanation:
because when there is a low pressure system you have cloudy and stormy skies.
They can conserve energy and resources by regulating their activities, producing only those genes necessary for the cell to function.
Your answer would be 2./B<span> "R</span>NA<span> opens up the and uses each strand as </span>a<span> template for </span>a new<span> strand."</span>