Which of the following is not true with respect to tobacco use?
a. A compound in tobacco smoke damages a cancer-suppressing gene, causing lung cancer.
b. Smoking causes cancers in the respiratory system only, because tobacco smoke is inhaled.
c. Women who smoke during pregnancy give birth to underweight infants.
d. Smoking can produce constriction of the blood vessels requiring amputation of extremities.
B
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Piaget emphasized which of the following about development:
a. knowledge begins with innate concepts b. children can only go through the stages of cognitive development in a set order c. children's developing emotions are closely tied to their cognitive abilities d. culture has a major impact on cognitive development
The visible spectrum refers to the __________
a) portion of the whole spectrum of light that is visible to the human eye. b) effect of intensity on how we see dark to grey to white. c) effect of the sound density on the perceptions of those with synesthesia. d) well-known fact that colors are less visible to some men's eyes.