The simple process of detecting the presence of stimuli is often ...

[bcretired]

The simple process of detecting the presence of stimuli is often referred to as
 
  A) seeing.
  B) hearing.
  C) sensation.
  D) perception.
  E) attention.

Question 2

A hierarchical system is one in which
 
  A) there is one absolute top.
  B) there is one absolute bottom.
  C) each element has specific levels or ranks with respect to one another.
  D) no two elements are at the same level.
  E) there is no cortical involvement.

[owenfalvey]

Answer to Question 1

Answer: C

Answer to Question 2

Answer: C