The layer of light-sensitive pixels in the digital image sensor of a camera is analogous to the layer of photoreceptors in which area of the eye?

Which of the following is a consequence of sympathetic nervous system activity?

a. increased heart rate b. increased digestion c. increased salivation d. decreased blood pressure

The _____ approach to school sex education has become more and more common

a. abstinence-preferred b. abstinence-only c. informed d. caution