Figure 4-7 -Refer to Figure 4-7.The Movement from Db to Da Could

question 36

Multiple Choice

Figure 4-7
-Refer to Figure 4-7.The movement from Db to Da could be caused by

• A)a decrease in price.
• B)an increase in the price of a complement.
• C)a technological advance.
• D)an increase in the price of a substitute.

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Definitions:

Generations

Sequential stages in the familial lineage, where an individual's successors are considered a new generation.

Disruptive Selection

A special type of directional selection in which changes in the environment favor two or more variant phenotypes at the expense of the mean. Compare with stabilizing selection and directional selection.

Directional Selection

A mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.

Trend

A general direction in which something is developing or changing; often used to describe patterns or tendencies in data.