This classical conditioning experiment includes a light and a tone, which we can call CS1 and CS2 . First the animal repeatedly gets CS1 followed by the UCS. Then it gets both CS1 and CS2 followed by the UCS. Which stimulus or stimuli will now evoke a strong CR?
a. Both CS1 and CS2, equally
b. CS1 only
c. CS2 only
d. Neither CS1 nor CS2
b
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In what organ does the exchange of nutrients and waste takes place?
a. amniotic sac c. umbilical cord b. placenta d. none of these
When adults draw with children and point out the resemblances between drawings and objects, preschoolers’ pictures __________
A) contain more distortions B) become simpler and less fanciful C) become more comprehensible and detailed D) contain fewer details
The entire set of genes inherited by an organism is called a phenotype, and it serves as a blueprint for everything into which that organism will develop
Indicate whether this statement is true or false.
At what age can the typical infant roll over?
a. 2 months b. 5 weeks c. 8 months d. 12 months