Compare and contrast the visual functions of rods and cones
What will be an ideal response?
Answer: The retina of the eye contains the photoreceptors that transduce light. Rods are more common than are cones, which predominate within the central region of retina (the fovea). Color vision is mediated by cones. The ability to resolve fine detail is also a function of cones within the fovea. Rods can function in low light conditions.
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Which of these is influenced by one's degree of social support in times of crisis?
(a) death rate due to tuberculosis (b) cirrhosis of the liver (c) stroke (d) all of the above (e) none of the above; social support influences how one perceives stress but not one's actual physiological response
In middle adulthood, the leading cause of death is
a) accidents. b) suicide. c) homicide. d) life-threatening diseases.