The Demand for Salt Is

question 222

Multiple Choice

The demand for salt is

• A) inelastic because there are few substitutes for salt and it represents a large percentage of a consumer's budget.
• B) inelastic because there are many substitutes for salt and it represents a large percentage of a consumer's budget.
• C) inelastic because there are few substitutes for salt and it represents a small percentage of a consumer's budget.
• D) elastic because there are no substitutes for salt and it represents a large percentage of a consumer's budget.
• E) elastic because there are many substitutes for salt and it represents a large percentage of a consumer's budget.

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Definitions:

Gene Flow

Describes the movement, or migration, of alleles from one population to another.

Genetic Drift

Genetic drift is evolution arising from random changes in the genetic composition of a population from one generation to the next.

Phylogenetic Tree

A diagram that depicts the evolutionary relationships among various biological species or entities based upon similarities and differences in their physical and/or genetic characteristics.

Distance-Matrix Method

A distance-matrix method is a procedure for constructing phylogenetic trees by clustering taxa based on the proximity (or distance) between their DNA or protein sequences. These methods place closely related sequences under the same internal branch, and they estimate branch lengths from the observed distances between sequences.