Which of the following happens in the third stage of the scientific method?
A. Scientists use mathematical techniques to interpret results.
B. Scientists develop expectations about an observed phenomenon.
C. Scientists communicate results.
D. Scientists test their hypotheses.
Answer: D
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Why are males more susceptible to X linked disorders?
a. Because males have an XX pairing of chromosomes; therefore, this increases their odds of a disorder. b. Because males have an XY pairing of chromosomes and the Y chromosome is more likely to host a genetic disorder. c. Because most genetic disorders are connected to the dominant gene and since men have an XY pairing a disorder is more likely to be expressed. d. Because males have one X chromosome, and if a recessive gene for a disorder is present, he does not have another X chromosome that may contain a dominant gene to block its expression.
Nicotine creates pleasurable feelings by causing the release of ______
a. endorphins c. catecholamines b. enkaphalins d. cortisol
Death from Creutzfeldt-Jacob disease typically occurs ______ onset of symptoms
a. within days of c. within months of b. within weeks of d. several years after
Two-year-old Henry has learned that whenever he is around his aunt, Katie, it is best not to show any fear because she does not react well when confronted by a fearful child. Henry's behavior best illustrates the concept of
A. avoidant attachment. B. emotion regulation. C. goal correction. D. separation anxiety.