Which of the following functions in gravitational equilibrium?
A. Semicircular canals
B. Saccule
C. Ampulla
D. Cochlea
Answer: B
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One key advantage associated with bilateral symmetry in animals is
A) An increase in speed. B) The presence of a coelom. C) The evolution of limbs. D) The evolution of cephalization.
A period of adjustment is required when moving from a dark room into bright light because
A) the breakdown of rhodopsin to opsin occurs slowly. B) the lens requires time to accommodate dim light. C) rods exposed to strong light need time to regenerate rhodopsin. D) rhodopsin does not function in dim light. E) only cones function in dim light.
The primary oocytes remain in a state of __________ for years until they are prepared for ovulation
Fill in the blank(s) with correct word
Why are cyanide compounds lethal to humans?
A. They interfere with protein synthesis. B. They interfere with nerve impulses. C. They interfere with the production of ATP. D. They interfere with muscle contraction. E. All of these occur with cyanide poisoning.