The hair cells in the utricle detect
A) subsonic sound vibrations.
B) volume and pitch of sounds.
C) differences in air pressure waves.
D) position of the head with respect to gravity.
Answer: D
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What is the equivalent of the mammalian mouth and nose in the respiratory system of insects?
A. Alveoli B. Tracheoles C. Spiracles D. Epithelial tissue
Which amino acid would Nirenberg and Leder have found when they used the triplet UAG?
A. proline B. isoleucine C. lysine D. threonine E. None of the answers are correct.
When a prey population increases, the population of its predator is likely to increase
a. true b. false
If you were a conservation biologist at a time before the woolly mammoths went extinct and could influence the survival of certain lineages depicted in the figure above,
which of the nodes labeled a through f on the figure below would you let go extinct so that you could use your resources to assure the survival of the lineages derived from the remaining nodes? a. node e c. node c b. node f d. nodes d, or e, or f