The perception of a certain pitch of sound depends partly on
A. which bones of the middle ear are moved.
B. the amplitude of the sound waves.
C. whether it is the round window or oval window that vibrates.
D. which hair cells of the cochlea are stimulated.
E. where particles settle in the semicircular canals.
D. which hair cells of the cochlea are stimulated.
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b. provide compounds used for pharmaceuticals. c. provide protection from storm generated surf conditions. d. all of these choices.
The collarbone is the
a. tibia. b. patella. c. scapula. d. clavicle. e. tarsal.
The ________ is the embryonic germ layer that develops into nervous tissue
Fill in the blank(s) with correct word
Which section of the small intestine is devoted to absorbing water and the products of digestion into the bloodstream?
A. ileum B. jejunum C. duodenum