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Chapter 5 Vocabulary Quiz

Teacher: Haefner
Across
When a species produces far more offspring than can possibly survive.
A fossil formed when an organism buried in sediment dissolves, leaving a hollow area.
A trait that helps an organism survive and reproduce.
Any difference between individuals of the same species
The process by which individuals that are better adapted to their environment are more likely to survive.
Similar structures that related species inherited from a common ancestor are ______ structures.
Someone who studies the natural world.
No members of a species are still alive.
Down
Process that lets scientists know one fossil is older than another
A diagram that shows how scientists think different groups of organisms are related.
The preserved remains of an organism.
A group of similar organisms that can mate and produce fertile offspring
The gradual change in a species over time.
The theory that evolution occurs slowly but steadily
The theory that evolution occurs during short periods of rapid change is punctuated _______.