Compared with normal drinking water, commercial sports drinks are relatively

a. hypotonic.
b. hypertonic.
c. isotonic

Which of the following is NOT associated with the concept of arbitrariness?

a. onomatopoeia b. connections that are learned c. naming d. changes in definitions across time

You form a negative afterimage of an object, and now you try to focus on a different part of the object. Why does the image move? a. Changing your fixation point causes different brain areas to become active. b. You are fatiguing a different set of receptors

c. Dominance shifts from one hemisphere to the other. d. The image is on your eyes themselves.