Researchers demonstrated that infants just under _____ months of age could see the difference between the deep and solid sides of a visual cliff
A) 2
B) 3
C) 4
D) 5
A) 2 A decade later, researchers demonstrated that infants just under 2 months of age could see the difference between the deep and solid sides.
4.1-106________ are involuntary movements that are elicited by environmental stimuli.
A) Motor cortex
B) Reflexes
C) Gross motor skill
D) Fine motor skills
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According to a systems theory, a system that maintains its organization, even though the parts constantly change, is considered
a. elemental. b. open. c. erratic. d. honest.
The functions of neurons include:
a. transmitting and receiving electrical messages b. providing support for glial cells c. insulating axons d. opening sodium gates in glial cells
The shift from smiling as a reflexive behavior to a voluntary response coincides with the infant's developing ability to
a. convey basic emotional states. b. initiate goal-directed behaviors. c. incorporate crying into the communication system. d. display complex emotions.
You read a study claiming that exposure to a certain chemical increases the risk of cancer. Based on what you know about epigenetics, how might you counteract this effect?
A. Use DNA methylation to reduce the effect of the toxin. B. Reduce stress to adjust hormone levels to counteract the effect of the toxin. C. Study candidate genes for the specific type of cancer to identify treatments. D. Eat foods that are known to "turn on" anticancer cells.