Seth walked at 10 months. Alicia walked at 14 months. Seth was placed on the floor a lot. Alicia had been carried almost all the time. This demonstrates:
a. human instinct.
b. an example of the blank slate.
c. ontogenetic and environmental influences interacting.
d. genetic loading.
C. Both infants walked within the normal span for achieving this milestone, demonstrating its ontogenetic influence. Seth's environment allowed him more opportunity to move about and he walked sooner than Alicia, demonstrating an environmental influence.
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Which of the following represents an example of social facilitation?
a. A talented musician performs better in front of a instructor than an audience. b. An individual's test score improves after studying with a group of friends the previous evening. c. An individual concentrates better on his exam after the teacher moves him to a more quiet room. d. An individual runs faster with a group of friends than by herself.