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22 Cards in this Set
- Front
- Back
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Adaptation
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Trait that helps an organism survive and reproduce
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Ancestors
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An extinct organism from which another organism descended
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Competition
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Caused by limited food and other resources
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Evolution
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The gradual change of a species overtime
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Extinction
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No members of a species are still alive
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Fertile
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Having the ability to produce offspring
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Fossil
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The preserved remains of an organism
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Fossil record
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The millions of fossils that scientists have collected
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Harmful mutation
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Mutation that decreases an organism chances of survival and reproduction
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Helpful mutation
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Mutation that improves an organism's chances of survival and reproduction
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Homologous
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Similar body structures that related species have inherited from a common ancestor
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Mutation
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Any change in a gene or chromosome
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Natural selection
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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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Neutral mutation
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Mutation that does not have an effect on the survival of an organism
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Overproduction
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Species that produce more offspring that can survive
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Population
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All the members of one species living in a particular area
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Predator
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An organism that hunts and kills another for food
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Prey
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An organism that is hunted and killed for food
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Scientific theory
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A well tested concept that explains many observations
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Species
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A group of similar organisms that can mate with each other and produce fertile offspring
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sterile
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Not have the ability to produce offspring
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Variation
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Differences between individuals of the same species
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