To Prepare Flight Muscles for Use on a Cool Morning

Multiple Choice

To prepare flight muscles for use on a cool morning, hawkmouth moths

A) relax the muscles completely until after they launch themselves into the air.
B) decrease their standard metabolic rate.
C) rapidly contract and relax these muscles to generate metabolic warmth.
D) walk to shaded areas to avoid direct sunlight.
E) reduce the metabolic rate of the muscles to rest them before flight.