During a particular period of physiological crisis, imagine that your carbon dioxide levels increase sharply, and consequently your blood pH decreases. Predict what will happen to the affinity of your hemoglobin for oxygen in this situation.
A. The affinity for oxygen by hemoglobin is constant- it does not change.
B. The affinity for oxygen by hemoglobin will increase.
C. The affinity for oxygen by hemoglobin will decrease.
C. The affinity for oxygen by hemoglobin will decrease.
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Which of the following cells are NOT found in the retina?
A. rods B. cones C. bipolar cells D. hair cells E. ganglion cells
Experimentally sending sustained stimulation to a muscle fiber causes ________
a. tetanus b. a period of insensitivity to further stimulation c. a twitch d. a forceful contraction
According to Thomas S. Kuhn and his book, 'The structure of scientific revolutions', paradigms change quickly as scientists rush to embrace new scientific ideas and new evidence
Indicate whether the statement is true or false.
Which of the following is not a reason we become shorter as we age?
a. As a person ages, the intervertebral discs become thinner and the vertebrae will be stacked closer together, resulting in shorter stature. b. As a person ages, vertebral bodies lose bone mass (osteoporosis) resulting in smaller vertebrae that stack closer together. c. As a person ages, scoliosis may develop resulting in an abnormal spinal curvature and shorter stature. d. As a person ages, the ligaments connecting vertebrae together are weakened, resulting in a more pronounced kyphosis. This posterior curvature of the spine lowers the skull, making you shorter.