Which animal is at the greatest risk for developing West Nile Virus from the bite of a mosquito?
a. cat c. goat
b. horse d. dog
B
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Where are the visual pigments located in the rods and cones?
A) in the inner segment of photoreceptors B) in mitochondria located in the outer segment C) inside membrane discs stacked in the outer segment D) inside a photosensitive nucleus E) sandwiched in the cell membrane of the photoreceptors
High frequency sounds are detected when the basilar membrane is displaced near the ________
Fill in the blanks with correct word
The baby’s first breath is stimulated primarily by:
a. the lack of oxygen in the blood b. the accumulation of carbon dioxide in the blood c. exposure to the “cold” temperatures outside the uterus d. the rigors of the birth process
What would occur if ACh was not removed from the nicotinic receptors on skeletal muscle cells?
a. The cell would relax. b. The cell would repolarize with the opening of chloride channels. c. The cell would remain contracted until fatigued. d. Sodium would continue to move into the cell, causing excitation. e. Both c and d would occur.