What occurs during anaphase?

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.

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

How are primary producers important to the alligator's energy supply