evolution Flashcards
adaptation
A trait or behavior that helps an organism survive in its environment
Natural Selection
The way nature chooses which organisms survive and reproduce based on their traits.
Evolution
the process by which living things change over time. It’s the result of genetic variation, natural selection, and inheritance.
Species
A group of living things that can reproduce and have offspring.
Fossil
The preserved remains or traces of ancient organisms found in rocks.
Extinction
When a species completely disappears and no longer exists.
Variation
Differences in traits among individuals of the same species.
Mutation
A change in DNA that can create new traits in organisms.
Ancestor
An early form of a species from which later species evolved.
Fossil Record – A collection of fossils that shows how life has changed over millions of years.
A collection of fossils that shows how life has changed over millions of years.