When both forward and reverse changes, the resulting equation represents a

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

What is the name for a substance formed in a chemical reaction

The first amino acid of a new polypeptide chain is