Often, researchers use __________________ as the subjects of their experiments because many basic processes in animals are sufficiently similar to humans and therefore these animals are acceptable substitutes for research that would be considered unethical in human participants.
a. monkeys and rodents
b. birds and rodents
c. monkeys and birds
d. birds and cats
b. birds and rodents
Often, researchers use birds and rodents as the subjects of their experiments because many basic processes in animals are sufficiently similar to humans and therefore these animals are acceptable substitutes for research that would be considered unethical in human participants.
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Hazel is exceedingly clumsy and uncoordinated. She has difficulty using a pencil or threading a needle. This may indicate damage to the ________
a. hippocampus. b. medulla. c. reticular activating system. d. cerebellum.
By what age do children begin drawing basic shapes?
a. 18 months c. 2 years b. 3 years d. by age 1 year
In the majority of cases, the cause of intellectual disability is ________
a. poor prenatal nutrition b. unknown c. clearly identified genetic abnormalities d. prenatal drug abuse by the mother
Girls have more fat tissue than boys in which age periods?
a. at all ages from birth onward b. from birth to adolescence but not afterward c. from birth to age two and again in adolescence d. from puberty onward e. only in early infancy