EVOLUTION Vocabulary
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Down:
1. A mechanism for change in populations that
occurs when organisms with certain
variations survive, reproduce, and pass
their variations to the next generation.
3. The process leading to the evolution of new
species that occurs when members of
similar populations no longer interbreed to
produce fertile offspring within their natural
environment.
7. The change of allelic frequencies caused by
chance events.
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Across:
2. Any variation that aids an organism's
chances of survival in its environment.
4. Breeding organisms with specific traits in
order to produce offspring with identical
traits.
5. Occurs when natural selection favors one of
the extreme variations of a trait.
6. Structural features with a common
evolutionary origin.
7. Set of all genes within an organism's
population.
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