The trichromatic theory of color vision states that color ...

[vinney12]

The trichromatic theory of color vision states that color perception is due to _____.
 
  A) the pattern of activity in four different receptors mechanisms
  B) the activity pattern in the occipital, parietal, and temporal cortical lobes
  C) the pattern of activity in three different receptor mechanisms
  D) processing in layers 1,2, and 3 in the LGN

Question 2

A literature search is usually conducted
 
  a. to be certain that no research relevant to the research hypothesis has already been conducted.
  b. to avoid duplication of effort and to expand and modify the original research hypothesis.
  c. to locate previous research that was ethically invalid.
  d. to locate previous research that was not falsifiable.

[micaelaswann]

Answer to Question 1

C

Answer to Question 2

b

[vinney12]

Great answer, keep it coming

[xthemafja]

Excellent