Recent scientific studies have shown that women should gain ____ pounds during pregnancy

One of the most reliable sleep disturbances associated with depression is________________.

Fill in the blank(s) with the appropriate word(s).

Which of the following students provides the best, most complete definition of the term "perception"?

a. Andrew: "Perception refers to the process of converting external stimuli into electrical signals within the nervous system." b. Marie-France: "Perception refers to the registration of visual information on the retina." c. Marco: "Perception refers to the mental images we create without any input from the external world." d. Sarah: "Perception uses our previous knowledge to collect and interpret sensory stimuli."