This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Researchers are training pigeons to peck to receive food pellets when they see gratings but withhold ... (Read 73 times)

joe

  • Hero Member
  • *****
  • Posts: 627
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alexanderhamilton

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jun 21, 2018
Answer to Question 1

c

Answer to Question 2

a


joe

  • Hero Member
  • *****
  • Posts: 627
Reply #2 on: Jun 21, 2018
Thank you


alexanderhamilton

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jun 21, 2018
No problem :)


« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Black and white patients enrolled in Medicare do not receive the same medical treatment, even when ... Black and white patients enrolled in Medicare do not receive the same medical treatment, even when ...
Selected Drug–Food and Drug–Herbal Interactions Selected Drug–Food and Drug–Herbal Interactions
Food and Drug Administration (FDA) Pregnancy Categories Food and Drug Administration (FDA) Pregnancy Categories
The Nutrient Fact Panel on the food label can help consumers make smart nutrition choices The Nutrient Fact Panel on the food label can help consumers make smart nutrition choices
Ranges of Food Security Ranges of Food Security
Basic Chart of Food Chain Basic Chart of Food Chain
Video: Blood Test Basics

For a complete list of videos, visit our video library