Herb is watching a documentary on Dr. Loewi. He learned that neuroscientists first understood that synapses use chemicals to communicate because Dr. Loewi _____.
A. decreased a dog's heart rate and then used adrenaline to speed it up
B. stimulated a frog's heart that was in a fluid bath and then used just the fluid to simulate a second heart
C. measured the reflex speeds in dogs
D. applied adrenaline directly onto a heart muscle
Answer: B
You might also like to view...
Compare and contrast the extent to which males and females endorse bisexuality or homosexuality at age 13 and 23
What will be an ideal response?
Adair is only in a good mood in the afternoons if he has the chance to work out over his lunch hour. In this example, Adair's behavior has:
a. low consistency b. low distinctiveness c. high distinctiveness d. high consensus
Development norms refer to:
a. parts of the body growing at differing rates b. the genetic plan by which individuals are created c. development occurring in a sequential and orderly fashion d. the average age at which individuals perform skills
Brooke knew smoking kills a lot of people once they get older. But smoking just felt good when Brooke was with her friends. Adolescents often weigh the ______________of behaviors such as smoking behavior more heavily than the risks
Fill in the blank with correct word.