Stepping on a nail is likely to result in a(n) :

Stepping on a nail is likely to result in a(n)
 
  A) flexion response.
  B) orienting response.
  C) sign stimulus.
  D) fixed action pattern.

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Question 2

Many reflexes are closely tied to
 
  A) survival.
  B) olfactory behavior.
  C) play behavior.
  D) social interaction.

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Question 3

The startle response is a defensive reaction to a(n)
 
  A) familiar stimulus.
  B) auditory stimulus.
  C) unexpected stimulus.
  D) sign stimulus.

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Question 4

The _____ response is a defensive reaction to a sudden, unexpected stimulus.
 
  A) orienting
  B) startle
  C) flexion
  D) reflex arc