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 96 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?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Elephants do not fully digest their food. Other animals, such as this Baboon may pick through elepha Elephants do not fully digest their food. Other animals, such as this Baboon may pick through elepha
A medical assistant holds a specimen container to receive a biopsy sample. A medical assistant holds a specimen container to receive a biopsy sample.
Basic Food Groups and Their Major Nutrients (Continued) Basic Food Groups and Their Major Nutrients (Continued)
Nearly all the food that you consume originates on a farm Nearly all the food that you consume originates on a farm
Many countries do not produce enough food and need to import food from the United States Many countries do not produce enough food and need to import food from the United States
Go Green: Tips for Making More Sustainable Food Choices Go Green: Tips for Making More Sustainable Food Choices
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library