What term would chronobiologists use to describe the timing of our heartbeat?

Studies of the effects of marijuana on automobile driving show

A. consistent impairment in experienced and inexperienced users. B. no reliable impairment under a variety of circumstances. C. that chronic marijuana users have a much higher rate of traffic accidents. D. significant impairments when inexperienced users are studied in a laboratory environment.

What disease occurs in malnourished infants in which their bodies stop growing, muscles atrophy, and they become lethargic?

a. failure to thrive b. human growth hormone deficiency c. marasmus d. progeria