What is the approximate life expectancy of individual taste receptor cells?
a) 1–2 days
b) 10–14 days
c) 1–2 months
d) 1 year
ANS: b
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Assume that variables X and Y are significantly correlated; the third variable problem means that
a. the correlation could be explained by their joint relation with some other factor. b. another variable must correlate with X but not Y. c. another variable must correlate with Y but not X. d. X causes Y and Y causes X.
What is the relationship between the motor neurons and muscle fibers?
a. The more muscle fibers a neuron innervates, the more precise the movements. b. The more neurons controlled by a single muscle fiber, the more precise the movements. c. The fewer muscle fibers controlled by a single neuron, the more precise the movements. d. Each neuron innervates only one muscle fiber.
During the __________ phase, the pancreas secretes __________ to ensure that the body and brain can utilize glucose.
A. fasting; glucagon B. fasting; insulin C. absorptive; glucagon D. absorptive; insulin
ISLE 5.3 Figure-Ground SymmetryClick on the above link to work though the ISLE activity. Once you've completed the activity, navigate back and answer the following question.When the symmetry slider is placed in the middle, which bands appear to be the figure?
A. white B. blue C. both white and blue D. neither white nor blue