When presenting lineups to eyewitnesses, it has been found that a(n) lineup is much more likely to result in an innocent person being falsely identified

Over the past 150 years, Darwin's ideas have been:

a. strongly challenged by findings in biology. b. resoundingly supported by findings in anthropology, botany, and molecular genetics. c. reexamined and found to be unscientific. d. slowly replaced by newer theories, making Darwin's original theories only important from a historical point of view.

Mitzi's cat has learned to meow every time it hears the can opener because Mitzi opened the cat food using an electric can opener The cat food now comes in pull-top cans, so the cat never receives food after hearing the can opener. Mitzi's cat stops meowing to the can opener, illustrating that which of the following has taken place?

a. shaping b. extinction c. a spontaneous recovery d. negative reinforcement