Grace whistles while tickling khaleel with a feather. eventually, khaleel starts to squirm and giggle every time grace whistles, even when he is not being tickled. in this example, squirming and giggling is a(n)
a. conditioned response
b. conditioned stimulus
c. unconditioned response
d. unconditioned stimulus

Identify the example of when situation and time are key to assessing risk of harm in a research study: a study on the efficacy of a behavioral intervention for smoking cessation involves both adults and teenagersasking women if they have had an abortionresearch on the prevalence of hiv-infected individuals in communitiesa survey about sexually transmitted diseases

Which is the most accurate description of the executive office of the president? groups of advisers who the chief of staff groups of advisers who the president groups of advisers who oversee national security groups of advisers who oversee the economy

Why do you think that historians use the word “revolution” to describe important changes in agriculture? how did the green revolution and other agricultural revolutions change the lives of billions of people? < < read less