Self-recognition in a mirror is limited to:
A) humans over 3 years old, cats, and gorillas.
B) humans, dogs, and apes.
C) a few animals and children over 18 months old.
D) humans over 3 years old.
C) a few animals and children over 18 months old.
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Identify a true statement about prelinguistic vocalizations
A) Babbling is not inborn. B) Deaf children cannot babble. C) During the second month, babies begin babbling. D) Babbling is prelinguistic.
On fixed schedules of reinforcement, once the pause following reinforcement has ended,
a. responding resumes but is very slow. b. responding resumes and is uniform. c. responding is sporadic until the next reinforcer is produced. d. a certain amount of time must pass before the next reinforcer is produced. e. a certain number of responses must occur before the next reinforcer is produced.
What percentage of children live within a 30-minute drive of their parents?
a) 45 percent b) 60 percent c) 75 percent d) 90 percent
Numbering about 120 million in each eye, which receptor cells allow us to see in dim light and are responsible for our seeing black and white images?
a. phosphenes b. rods c. cones d. stereocilia