Biology- Evolution Review

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What is Evolution?

Back

Change over time in the heritable characteristics of biological populations.

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What is Natural Selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

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What is Genetic Variation?

Back

Differences in DNA among individuals, which can lead to different traits in a population.

Front

Why is Genetic Variation important for a population?

Back

It helps a population adapt to changing environments and reduces the risk of extinction.

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What are Advantageous Traits?

Back

Traits that increase an organism's chances of survival and reproduction.

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What did Darwin propose about organisms best suited to their environments?

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They will increase in number over time.

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What is a Common Ancestor?

Back

An ancestral species from which two or more species have evolved.

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What is Selective Breeding?

Back

The process of breeding plants and animals for particular genetic traits.

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What is Homeostasis?

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The ability of an organism to maintain stable internal conditions despite external changes.

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What is the significance of Fossil Evidence in Evolution?

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Fossils provide evidence of how species have changed over time and can show common ancestry.