How does thermal energy affect particle movement?

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.

Plants that have reproductive structures called cones are?

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above