After reaching the inner ear, the frequency of a sound primarily affects
A. the amplitude of basilar membrane vibration.
B. the location of the greatest basilar membrane vibration.
C. the vibrational amplitude of the tectorial membrane.
B. the location of the greatest basilar membrane vibration.
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Which two components of the endomembrane system share continuous membranes?
a. plasma membrane and Golgi apparatus b. endoplasmic reticulum and lysosomes c. nuclear membrane and endoplasmic reticulum d. Golgi apparatus and plasma membrane
Scientists observed that over the past 40 years, marmots are located at increasing elevations on mountains. What is the best explanation for this observation?
A. The marmots are adapting to the cold temperatures. B. Other species are competing with the marmots for their normal habitat. C. More snow and rain is falling at the top of the mountains. D. It is becoming colder at the top of the mountains. E. It is becoming warmer at the top of the mountains.
Some flowering plants cannot self-pollinate. This increases their tendency to mate with phenotypically different mates, a process called disassortative mating. What effect would this have on a population in Hardy-Weinberg equilibrium?
A. An increase in heterozygotes would be observed. B. An increase in homozygotes would be observed. C. No change homozygotes or heterozygotes would be observed. D. A decrease in heterozygotes would be observed. E. The population would remain in Hardy-Weinberg equilibrium.
Which of the following correctly lists the order of the parts of the human digestive system, from first to last contact with food matter?
A) pharynx, oral cavity, esophagus, stomach, large intestine B) oral cavity, pharynx, esophagus, stomach, small intestine, large intestine C) esophagus, pharynx, stomach, small intestine, large intestine D) oral cavity, esophagus, stomach, large intestine, small intestine