Multiple Choice
Which consequence occurred when sea otters were overhunted along the Pacific coast?
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1. Introduction to Biology
Natural Selection and Evolution
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Why do scientists use comparisons between fossils and existing species to classify organisms?
A
To determine the exact age of all living organisms
B
To identify evolutionary relationships and trace the lineage of species over time
C
To increase the genetic diversity of modern populations
D
To predict future mutations in current species
Verified step by step guidance1
Understand the purpose of comparing fossils and existing species: Scientists use these comparisons to study evolutionary relationships and trace the lineage of species over time.
Recognize that fossils provide historical evidence of organisms that lived in the past, including their physical structures and adaptations.
Compare the anatomical features, genetic information, and other traits of fossils with those of existing species to identify similarities and differences.
Use these comparisons to construct phylogenetic trees, which visually represent evolutionary relationships and help trace how species have evolved over time.
Acknowledge that this process does not determine the exact age of living organisms, increase genetic diversity, or predict future mutations, but rather focuses on understanding evolutionary history and connections.
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