Over a Span of Two Decades,scientists Measured Changes in the Beak

question 21

Multiple Choice

Over a span of two decades,scientists measured changes in the beak size of a population of Galápagos ground finches.This ________.

• A)provided evidence of natural selection in action
• B)is an example of artificial selection
• C)is an example of overproduction
• D)led Darwin to his theory of evolution through natural selection

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Definitions:

Consumer Price Index

An index measuring the change over time in the prices paid by urban consumers for a market basket of consumer goods and services.

Inflation Rate

The level at which the total pricing metrics for goods and services peak, impairing the utility of money.

Inflation Rate

The acceleration in the average cost levels for goods and services, hindering effective buying power.

Price Index

A statistical measure that examines the weighted average of prices of a basket of consumer goods and services over a period of time.