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Natural Selection Review

Across
Where Darwin made most of his observations
Darwins book
A gradual change in a species over time
Individuals that are better adapted to their environment are more likely to survive
Birds that Darwin is famous for studying
The surrounding conditions in which a person, plant, or animal lives
An individual plant or single celled life form
Down
A species creating more offspring than can possibly survive
A trait that helps an organism survive and reproduce
A group of similar organisms that can mate and produce fertile offspring
Ship that Darwin sailed on
Differences between members of the same species
Humans breeding organisms according to their beneficial traits
The preserved remains or traces of an organism that lived in the past
Length of time Darwin traveled