Which cells are responsible for photopic (day) vision as well as trichromatic (color) vision?
A) Rods
B) Pigment cells
C) Cones
D) Ganglion cells
E) Bipolar cells
C
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Fortunately for science, there is but one single property that defines life.
Answer the following statement true (T) or false (F)
"Glucose, glucose, every where, nor any speck to utilize" is a phrase made up by one of the authors working on this test question. Similar to the irony of not being able to prevent dehydration by drinking seawater, people with untreated diabetes mellitus are unable to prevent starvation despite the large amount of glucose surrounding their cells; as if that isn't bad enough, dehydration is also a
problem. Explain why there is glucose in the urine of such people, why glucose is not present in the urine of normal people, and why diabetics become dehydrated. What will be an ideal response?
What is the function of the arches of the foot?
A. To smoothly transfer weight from the heel to the big toe B. To bear weight C. To prevent avulsion of the foot D. To prevent pes planus E. To prevent eversion
Which of the following provides the best example of a negative feedback control mechanism?
A. Shivering and generating heat in response to a drop in body temperature B. Increased uterine contractions in response to oxytocin during labor C. Putting on a sweater because you think it is cold outside D. Increased body temperature in response to exercise