A secondary oocyte remains viable for about ________ hours, while most sperm remain viable in the female reproductive tract for about ________ hours.
A. 24; 48
B. 24; 72
C. 24; 24
D. 48; 72
Answer: B
Anatomy & Physiology
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The connection of the anterior portion of the tongue to the underlying epithelium is the
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On each side of the chest, the ________ pleura lines the internal thoracic wall and the ________ pleura tightly covers the lung.
A. visceral; parietal B. fibrous; serous C. parietal; visceral D. respiratory; pleural E. thoracic; pulmonary
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The nutrients that yield the most energy per gram when metabolized are
A) carbohydrates. B) proteins. C) lipids. D) nucleic acids. E) vitamins.
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Hair color is due to a pigment known as ________
A) hemoglobin B) carotene C) keratin D) melanin
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