Jason is participating in a psychology experiment in which he is seated in a completely dark room. an initially undetected point of light is gradually made brighter. with each increase, he is asked if he can see the light. in this experiment, jason’s is being measured.

The development of simple stone tools by early hominids led to the ability to procure meat more efficiently. this in turn led to the change in diet that included larger amounts of protein. many scholars believe that this shift in diet was a significant part of how our ancient ancestors adapted so quickly to a varied set of environments, and thus were able to begin cultural development. this demonstrates the intimate connection between