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Definition
| Group of similar organisms that can mate with each other and produce fertile offspring |
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| Trait that helps an organism survive and reproduce |
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| Well-tested concept that explains a wide range of observations |
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| Process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of their same species |
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| Preserved Remains or Traces of an that lived in the past |
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| When no members of a species are alive |
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| Millions of fossils that scientists have collected |
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| Theory that evolution occurs slowly but steadily |
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| Theory that states that new species form when small populations become isolated, and evolution occurs in short bursts |
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| Similar structures that related species have inherited from a common ancestor are called homologous structures |
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| Diagram that shows how scientist think different groups of organisms are related |
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| Mixtures of mixtures of minerals and other minerals |
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| Molten materials cools and hardens below or on Earth's surface |
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| Sedimentary Rock forms when? |
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| Particles of other rocks or the remains of plants and animals are pressed and cemented together |
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| A series of processes on and beneath Earth's surface that slowly change rocks from one kind to another |
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| Scientists who study fossils |
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| Fossils in which minerals replace all or part of an organism |
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| Hollow area in sediment in the shape of an organism or part of an organism |
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| Copy of the shape of an organism |
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| Extremely thin coating of carbon on rock |
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| Evidence of the activities of ancient organisms |
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| A rocks age compared to the ages of other rocks |
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| Number of years since the rock formed |
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| Lava that hardens on the surface is called an extrusion |
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| When magma cools and hardens into a mass of igneous rock called an intrusion |
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| Fossil used to match rock layers, must be widely distributed and represent a type of organism that existed only briefly |
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| Tiny particles making up absolutely everything |
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| When all atoms in a particular type of matter are the same |
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| When elements break down by releasing particles and energy |
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| Animals without a backbone |
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| Largest unit of measurement in geologic time |
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| Animals with scaly skin which lay eggs with tough, leathery shells |
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| Period of time where many types of living things became extinct at the same time |
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| Warm-blooded animal that feeds its young milk |
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| Organization of organisms into orderly groups based on similarities |
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| Largest, most general classification group |
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| Organisms in a kingdom seperated down into several groups |
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| Organisms in a phyla seperated farther down |
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| Organisms in a class further down the line |
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| Each order separated down farther |
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| Science of identifying, classifying, and naming living things |
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| Special guides to aid in identifying unknown organisms |
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| Archaebacteria and Eubacteria |
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| Most people easily recognize the members of kingdom Plantae |
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| Do not perform photosynthesis, break down surroundings. |
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