Given the cascade of events leading to ischemia-produced brain damage, __________ antagonists administered immediately after a stroke might reduce the development of brain damage

Almost ________ of full-time college students work at least a few hours a week

A) three-quarters B) one-third C) one-fifth D) two-thirds

If left in a place with no time or light cues, your sleep-wake cycle would:

A. remain at 24 hours B. change to a little more than 24 hours C. keep constant at 12 hours D. remain unchanged at about 4 hours