The diagram shown here represents a portion of a nucleic acid molecule. The part indicated by the arrow could be

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.

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel

Approximately what wavelength of light is best absorbed by chlorophyll a