how increased physical activity can help to prevent weight gain. A complete answer will include ATP, energy, cellular respiration, CO2 and H2O.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

this might

in the initial assessment of breathing, signs of respiratory distress must be noted (if present), such as the use of accessory muscles for breathing, abdominal breathing and grunting respiration. next, respiratory rate must be observed. increasing breathing rate may be a sign of sickness.