The perception of a certain pitch of sound depends partly on
A. the amplitude of the sound waves.
B. whether it is the round window or oval window that vibrates.
C. where particles settle in the semicircular canals.
D. which bones of the middle ear are moved.
E. which hair cells of the cochlea are stimulated.
Answer: E
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Which of the following is not an effect of deforestation?
1.destruction of forest organisms 2.higher risk of flooding 3.higher risk of landslides 4.increased productivity
Which statement is true?
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The epithelial lining of the small intestine is modified for what function?
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