Which of the following would not qualify as a teratogen?
a. Cigarette smoke
b. Alcohol
c. Prescription drug
d. All of the above are possible teratogens.
Answer: D
Rationale: A teratogen is a substance, such as a drug, that is capable of producing physical defects.
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Which of the following appears to be the sequence of events associated with resetting one's biological clock?
a. The hypothalamus signals the thalamus, which in turn sends signals to the medial forebrain bundle. b. The thalamus signals the optic chiasm, which in turn causes a release of the hormone philoxin, which activates the renal gland. c. The suprachiasmatic nucleus signals the pineal gland, which in turn secretes the hormone melatonin. d. The superior colliculus signals the thalamus, which stimulates Broca's area.
Research indicates that eating disorders
a. may have cultural influences. b. tend not to run in families. c. don't involve genetic components. d. are far more common among boys than previously thought.
Federal guidelines for using human participants in research apply to all organizations and individuals receiving federal funding
a. True b. False Indicate whether the statement is true or false
Long ago, during the early days of television, when a television set was turned off it took a while for the last image that was on the screen to fade away. This phenomenon is most like _____________
a) sensory memory. b) working memory. c) short-term memory. d) long-term memory.