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Chapter 5 Vocabulary Quiz

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