A rabbit’s eyes are on the sides of its head instead of in front. Would you expect rabbits to have many cells with binocular receptive fields—that is, cells that respond to both eyes? Why or why not?

What statement is true regarding the retinal pigment epithelium? Cells in the PE are the site of phototransduction Cells in the PE signal between rods and bipolar cells Cells in the PE have enzymes that convert the light-sensitive photopigments back to a useable form Cells in the PE send their axons out of the retina

45-46. A) Trace the flow of information through the nervous system from stimulus to response. Be sure to identify the types of neurons involved.     -OR- B) Describe what is meant by sensory adaption, and explain how this can be considered an evolutionary adaptation. -OR- C) Describe what is meant by afterimage, and explain how this supports the trichromatic theory of color vision.

Review the summary of a published scientific study below: Patients with multiple sclerosis frequently suffer from blurred vision. Drug X was developed to reduce blurred vision in healthy patients, but the effectiveness had not been tested on those suffering from multiple sclerosis. A study was conducted to determine if Drug X is effective at reducing blurry vision in multiple sclerosis patients. To be considered effective, a drug must reduce blurred vision by more than 30% in patients. Researchers predicted that a 20 mg dose of the drug would be effective for treating blurred vision in multiple sclerosis patients by reducing blurred vision by more than 30%. Drug X was administered to groups of multiple sclerosis patients at three doses (10 mg/day, 20 mg/day, 30 mg/day) for three weeks. A fourth group of patients was given a placebo containing no drug X for the same length of time. Vision clarity was measured for each patient before and after the three-week period using a standard…