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science chapter 5

QuestionAnswer
species a group of similar organisms that can mate with each other and produce fertile offspring
fossil the preserved remains or traces of a organism that lived in the past
adaptation a trait that helps an organism survive and reproduce
evolution the gradual change in a species over time
scientific theory a well-tested concept that explains a wide range of observations
natural selection the process by witch individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species
variation any difference between individuals of the same species
homologous structures similar structures that related species have inherited from a common ancestor
branching tree a diagram that shows how scientists think different groups of organisms are related
Created by: ghill
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