Most people with Down syndrome have chromosomes in their cells
a. 45
b. 46
c. 47
d. 23
c
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Reginald's camera always makes a clicking noise just before the flash goes off. After taking many pictures of his little brother Devin, he presses the button, the camera clicks, but the flash does not go off. Despite this, Devin blinks just as he did when the flash was working. This is an example of __________ conditioning, and the flash is the __________.
A. classical; unconditioned stimulus B. classical; unconditioned response C. operant; positive reinforce D. operant; negative reinforce
High _____ expectations are accompanied by relatively lower levels of adrenaline and noradrenaline in the bloodstream
Fill in the blank(s) with correct word
External cues, such as the rising of the sun, used by animals to establish daily rhythms are known as
A. phase shifts. B. zeitgebers. C. entrainment signals. D. circadian rhythms.
Sharon is a pediatrician working in a developing country. She would likely use oral rehydration therapy to treat __________________
a. smallpox b. diarrhea c. malaria d. yellow fever