Time in school spent devoted to physical education and recess has declined to increase time spent for reading and math

To demonstrate the impact of different environmental experiences on the brain, one group of rats was raised in a complex environment, while another group of rats was raised in a simpler environment. When their brains were compared, the rats raised in the more complex environments had a. fewer synapses and shorter dendrites. b. more synapses and longer dendrites. c. fewer axons but more

neurilemma. d. less myelin and less neurilemma.

In Garcia and Koelling’s taste aversion study, why were the rats unable to associate a bright-noisy stimulus with feeling ill?

a. ?The rats lacked the cognitive ability to do so. b. ?The rats enjoyed the bright-noisy stimulus enough to tolerate their illness. c. ?The rats relied more on taste and smell rather than vision and hearing for identifying food. d. ?The rats were so distracted or frightened by the bright-noisy stimulus they did not notice they were ill.