This Chapter Describes the Case of Giraffes' Long Necks to Illustrate

question 18

Multiple Choice

This chapter describes the case of giraffes' long necks to illustrate how natural selection works on variety within a population.This explanation contrasts with the incorrect alternative of the inheritance of acquired characteristics,which suggests that

• A) in each generation, individual giraffes strain their necks to reach food just a bit higher, and that this straining somehow modifies their genetic material.
• B) in each generation, individual giraffes mate with giraffes having longer necks because they are better at getting food, and their offspring's neck size results in an average of the parents' neck sizes.
• C) a need for a longer neck activates the long-neck gene throughout development.
• D) natural selection works on the genotype, not the phenotype.
• E) the presence of variety among a population works against the advantages of natural selection.

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Definitions:

Trait Theorists

Researchers who focus on the identification and measurement of specific personality characteristics or traits.

Cattell

A psychologist who made significant contributions to the fields of personality, intelligence, and psychological measurement.

Allport

Gordon Allport, a psychologist known for his theory of personality and his research on the psychology of prejudice.

Cardinal Trait

A personality attribute considered so dominant in an individual that it influences nearly all aspects of their behavior.