You are walking late at night when you note movement coming up behind you on your left side. You spin around and accidently scare the jogger. Your ability to detect this movement demonstrates your excellent peripheral vision, which is due to the area of the retina that is 20 degrees from center and has a large number of

Carlos is 35 years old and is trying to learn English for the first time. He is experiencing more difficulty than if he were 5 years old because

the ability to learn language is gone by 5 years of age. he has significantly reduced crystallized intelligence. crystallized intelligence is needed to learn new materials. his fluid intelligence has declined.

Normative age-graded influences can be __________ in origin

A) social B) biological C) cognitive D) All of the above