During this phase of cell division, the chromatin fibers condense and shorten into chromosomes that are visible under the microscope
a. Prophase
b. Prometaphase
c. Metaphase
d. Anaphase
e. Telophase
Ans: a. Prophase
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Which of the following describe basal metabolic rate (BMR)?
A. Increases or decreases depending upon how much a person exercises B. Remains the same throughout life. C. Increases continually throughout life D. Increases from birth to age five, then declines, then peaks in adolescence, then drops during adulthood
During excitation-contraction coupling,
a. the action potential travels down the transverse tubules. b. Ca2+ is released from the sarcoplasmic reticulum. c. Ca2+ is taken up by the sarcoplasmic reticulum. d. both (a) and (b) above are correct. e. all of these answers.
Chylomicrons
A. help emulsify fats. B. are synthesized in the lumen of the small intestines. C. are a rich source of carbohydrate. D. are synthesized in intestinal epithelial cells. E. enter capillaries in the small intestine.
The conus medullaris
A. anchors the spinal cord to the coccyx. B. is a tapered, cone like region immediately inferior to the lumbar enlargement. C. marks the exit of nerves to the upper extremity. D. is located adjacent to the foramen magnum. E. is inferior to the cauda equina.