Ivan Pavlov studied the reflexive flow of saliva in dogs. He used meat powder or other food to trigger the salivation. In this instance, the meat powder was the ________
a. conditioned stimulus
b. unconditioned stimulus
c. conditioned response
d. unconditioned response
Answer: b
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What is the substance that genes are composed of, that determines the nature of each cell in the body and how it will function?
A. chromosomes B. gametes C. zygotes D. deoxyribonucleic acid (DNA)
Describe the concept of gene–environment correlation, including passive, evocative, and active types. Define niche-picking
What will be an ideal response?
Preoperational children's failure to show conservation occurs because of a characteristic known as:
a. egocentrism. c. transductive reasoning. b. precausal thinking. d. irreversibility.
When does random assignment take place?
A. Before the study begins potential participants are randomly assigned to the study group. B. After participants consent to participate, they are randomly assigned to the study group. C. After participants consent to participate, they are randomly assigned to the outcome group. D. After the experiment is performed, participants are randomly assigned to the outcome group.