After passing through the lens the light continues through the vitreous _____, a gelatinous liquid, before arriving at the retina.

What is Galen credited with

A) performing the first human autopsies. B) recognizing that psychological disorders could have both biological and psychological causes. C) demonstrating that the doctrine of the four humors was flawed. D) providing the first biological explanation for mental disorders.

After infants learn not to crawl off ledges, why is it misleading to say they learned a fear of heights? a. They show no fear when being held over a great height

b. When they start walking, they have to learn again not to step off ledges. c. They don't seem afraid when they watch something else fall. d. At this age, they are afraid of everything.