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| Characteristic that helps living things survive and reproduce in a given environment |
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| Number of different species in an area or in the entire biosphere |
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| Science of life, study of life |
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| Group of similar ecosystems withrather same general type of physical environment |
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| Part of Earth where all life exists, including land, water and air |
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| Basic unit of structure and function of living things |
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| Theory that all living things are made up of cells, all life functions occur within cells, and all cells come from existing cells |
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| All of the populations of different species that live in the same area |
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| Relationship between living things that depend on the same resources in the same place at the same time. |
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| All the living things in agiven area together with the physical factors of the nonliving environment |
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| Change in the characteristics ofliving things over time, the change in species over time |
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| Theory that the characteristics of living things arecontrolled by genes that are passed from parents to offspring |
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| Process of maintaining a stable environment inside a cell or an entire organism |
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| Evolutionary process in which some living things produce more offspring that others so the characterics od organisms change in time |
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| Structure composed of more than one one type oftissue that performs a particular structure |
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| Group of organs that worktogether to do.A certain job |
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| An individual living thing |
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| allA all the organisms of the same species that live in the same area |
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| Process by whichtintingthings give rise to offspring |
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| Close relationship between organisms of adifferent spaces in which at least one of the organisms benefits from the relationship. |
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