Which of the Following Is the Most Useful Physical Sign

question 9

Multiple Choice

Which of the following is the most useful physical sign of long-ago climate change?

• A)coral reefs
• B)fossilized grains
• C)ice cores extracted from ancient glaciers in Greenland
• D)annual growth rings in trees

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Definitions:

Pristine Environment

An ecosystem or area that is untouched or minimally impacted by human activities, often considered in a natural or original state.

Genetic Distance

A measure of the genetic divergence between species or between populations within a species; a reflection of the amount of genetic change (evolution) that has occurred.

Subpopulations

Distinct groups within a larger population that often have unique characteristics or genetic makeup.

Allele Frequencies

The relative frequencies of different alleles of a particular gene in a population, a fundamental concept in population genetics that helps explain the genetic diversity and evolutionary processes.