Species- Group of organisms similar characteristics.
Evolution- Change in inherited characteristics over time.
Natural Selection- Traits best suited for environment survive.
Variation- Inherited trait that makes an organisms better suited for it's environment.
Gradualism- Evolution is slow change. Tens of millions of years.
Punctuated equilibrium- Evolution is few thousand years or million years of even fast with change coming in decades.
Adaptation- A variation that makes an organism better suited for it's environment.
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