13. Which statement correctly compares a function of lipids to a function of proteins in the body? A. Fats insulate the body, and proteins control contraction.
B. Fats cushion the organs, and proteins insulate the body.
C. Fats coordinate body activities, and proteins provide sugars.
D. Fats store energy, and proteins provide the primary fuel for cell respiration.

The correct answer is A.

Fats thermally insulate the body, while proteins like actin and myosin form myofibrils which are the anatomical support for contraction.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a