Biology, Eighth Edition (Raven)

Chapter 45: Sensory Systems

Pre Test

1
For all different types of sensory receptors, it is true that as the intensity of the stimulus increases the: (p .900)
A)amplitude of the action potential increases.
B)frequency of the action potentials increase.
C)threshold level for the action potential decreases.
D)frequency of the action potentials decrease.
E)none of the above
2
Which of the following is NOT a mechanoreceptor? (p. 901)
A)proprioceptor
B)thermoreceptor
C)nociceptor
D)baroreceptor
E)kinoreceptor
3
True or False: Hearing (the detection of sound waves) works better in air than in water. (p. 903)
A)True
B)False
4
True or False: Flies taste with their feet. (p. 909)
A)True
B)False
5
Which phyla have independently evolved well-developed, image-forming eyes? (p. 911)
A)platyhelminthes, arthropoda, mollusca, chordata
B)arthropoda, mollusca, echinodermata, chordata
C)annelida, arthropoda, mollusca, chordata
D)annelida, arthropoda, chordata
6
Some vertebrates can detect: (p. 916)
A)infrared radiation.
B)magnetic fields.
C)electric currents.
D)all of the above
E)none of the above
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