Studies conducted in the United States have indicated that from early to late adolescence, the percentage of teens involved in romantic relationships:
A) ?ranges from 5% to 50%.
B) ?approximately doubles from about 30% to about 70%.
C) ?approximately doubles from about 20% to about 40%.
D) ?ranges from 10% to 100%.
B
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Today, ______ clinical psychology is the MOST popular theoretical orientation among professional psychologists.
A) behavioral B) psychodynamic C) cognitive D) interpersonal
Why is the cerebral cortex folded in so many convolutions?
A) During prenatal development, the neural tube continues to fold over and over on itself, creating a hollow, convoluted structure. B) The cerebral cortex is very thick, so the folds allow for blood and other fluids to penetrate to the inside of the brain. C) The many folds allow a greater amount of surface area to fit within the skull. D) The electrical impulses of the neurons burn away sections of the brain as they start to make their connections, making the brain look like it has folds.