The first neurons to be affected in Alzheimer's disease are cells that release
a. serotonin.
b. dopamine.
c. beta amyloid.
d. acetylcholine.
d. acetylcholine.
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When a child receives different forms of a certain gene from her or his parents, how would a geneticist describe that child?
A. monozygous B. phenozygous C. homozygous D. heterozygous
Knowledge of facts and ideas, including words, numbers, and other memorized information, is your ___________ memory.
A. episodic B. procedural C. declarative D. semantic
Which attribute is the centerpiece of friendship during the ages of 8 to 10 years?
A. similar racial or ethnic background B. mutual trust C. similar size and weight D. living geographically near one another
Studies that have evaluated concordance rates for depressive and bipolar disorders have found
a. only unipolar disorder has a genetic component. b. the influence of genetic factors appears to be stronger for unipolar disorders than for bipolar disorders. c. the influence of genetic factors is the same for both bipolar and unipolar disorders. d. the concordance rate for identical twins is much higher than the rate for fraternal twins .