A nonassociative learning called __________ can be defined as a decrease in response to a repeated stimulus that has no positive or negative consequences.
A. instinctive learning
B. imprinting
C. desensitization learning
D. habituation
E. cognitive learning
D. habituation
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Weakened bones, kidney stones, and malfunctioning muscles are symptoms of
a. hyperthyroidism. b. Grave's disease. c. acromegaly. d. hyperparathyroidism. e. Wilson's disease.
How do prions differ from viruses?
a) Unlike viruses, prions are infectious proteins. b) Unlike viruses, prions do not include any nucleic acids. c) Unlike a virus, a prion is a single molecule. d) all of the above
Logistic population growth is characteristic of a population that moves into a new habitat, experiences a rapid increase in number, and then stabilizes
Indicate whether the statement is true or false
Araschnia levana is a species of butterfly that breeds several times a year. It has two distinctly colored pupae. Although the genes for pupa color do not differ, those that emerge in spring are orange and those that emerge in summer are brown. The
seasonal color variations in pupae mean that the pupae blend into the colors in their environment. This is an example of A) a threatened species. B) an endemic species. C) a keystone species. D) phenotypic plasticity.