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Author Question: Researchers are training pigeons to peck to receive food pellets when they see gratings but withhold ... (Read 77 times)

joe

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on: Jun 21, 2018
Researchers are training pigeons to peck to receive food pellets when they see gratings but withhold their pecks to receive pellets when they see a uniform gray circle. This procedure will help the researchers determine
 
  a. whether or not pigeons can see color.
 b. whether or not pigeons have feature detectors.
 c. how much contrast a grating must have before it looks different from the gray circle to a pigeon.
 d. whether pigeons are intelligent enough to learn to peck one stimulus rather than another.

Question 2

Which of the following factors contributes the least to feelings of thirst?
 
  a. feelings of a dry mouth
 b. a reduction in intracellular fluid levels
 c. a reduction in extracellular fluid levels
 d. an increase in the concentration of extracellular solutes


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alexanderhamilton

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Reply #1 on: Jun 21, 2018
Answer to Question 1

c

Answer to Question 2

a


joe

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Reply #2 on: Jun 21, 2018
Thank you


alexanderhamilton

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Reply #3 on: Jun 21, 2018
No problem :)


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