Psychology Help Please!?

Please can someone answer these questions? I seriously don't understand them!

1) According to the opponent-process theory of color vision, if you stare at a patch of red on a white screen and then a patch is taken away, you should see a __________ afterimage where the patch had been located.

a. blue

b. green

c. yellow

d. gray

(I don't think its blue)

2) If you are standing between railroad tracks and staring down the tracks, the tracks appear to converge in the distance. This is an example of a ______ cue called _______.

a. more; more

b. more; less

c. less; more

d. less; less

(I don't think its b)

3) In a detection task, yea-sayers will have _____ "hits" than nay-sayers when a weak stimulus is present and _______ "F alarms" when there is no stimulus present.

a. more; more

b. more; less

c. less; more

d. less; less

(I don't think its b)

4) Our ability to perceive differences within a particular sense (like differentiating red from pink) depends upon ______.

a. the doctrine of specific never energies

b. anatomical coding

c. functional coding

d. response bias

(I don't think its b)

5) Which of the following depends heavily upon the three semicircular canals in the inner ear?

a. audition

b. kinesthesis

c. equilibrium

d. none of the above

(I don't think its a)

6) Which of the following statements about our sense of taste is F?

a. There are four basic tastes - salty, sour, bitter, and sweet

b. A different area of the tongue is sensitive to each of the four basic tastes.

c. The center of the tongue contains no taste buds.

d. None of the above

(I don't think its c)

7) With respect to our olfactory and skin senses, which of the following statements is (are) F?

a. Researchers do not agree on which smells, if any, are basic.

b. There is a distinct kind of receptor for each of the four skin senses.

c. According to the gate-control theory of pain, larger fibers that respond to pressure close the gate.

d. All of the above

(I don't think its a)

Ok thats it Please PLEASE help me out! I really need it