The Modern Human's Genes Date Back to a Time When

Multiple Choice

The modern human's genes date back to a time when ____.

A) the food supply was much more varied than it is today
B) efficient processing of foods eaten was not required
C) the body's metabolism was faster than it is now
D) daily physical exertion was necessary for survival
E) food was processed based on the "thrifty gene," which no longer applies today