A toddler produces how many new synapses in the frontal cortex per second?
2 million
200,000
20,000
2,000
2 million
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Jessica's vision is 20/20, but her friend Joshua needs to wear glasses to correct for his 20/200 vision. Without his glasses, Joshua sees as much detail in objects that are 20 feet away from him as Jessica sees in objects that are _________ feet away from her.
A. 10 B. 20 C. 200 D. 2,000
What prenatal technique can be used to examine the status of the fetus by taking samples of the cells that are beginning to form the umbilical cord?
a. amniocentesis b. chorionic villus sampling c. alphafetal protein d. ultrasound
Every addictive substance causes dopamine levels in the brain to increase
a. True b. False
A number of researchers have found that people from ________ cultures are less likely to engage in obvious attempts to reduce cognitive dissonance
a. industrialized b. independent c. primitive d. interdependent