The answer is the first choice:
Negative feedback reverses a change in a variable that has moved outside of its normal range, whereas positive feedback strengthens it.
Feedback loops do not only apply to blood pressure. There are many examples from body temperature regulation to child birth to your AC unit at home.
Maintain homeostasis - eg. blood sugar control by insulin and glucagon.<span>
HOP THIS HELP GOOD LUCK:)</span>
Oxygen, nitrogen, carbon, hydrogen NOT magnesium
<span>a. replicate DNA at the appropriate time.
Prokaryotes are one celled organism that only reproduce by binary fission. A copy of a copy, of course the DNA is copied as well. DNA is duplicated a succinct period of time when necessary since the energy needed to perform this process is necessarily abundant. </span>
