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22 Cards in this Set
- Front
- Back
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Biology
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study of life
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organization
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high degree of order within an organism
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cell
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smallest unit of life
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multicellular
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made up of multiple cells
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unicellular
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made up of one cell
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organs
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structures that carry out specialized jobs within an organ system
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tissues
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groups of cells that have similar abilities and allow an organ to function
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organelles
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tiny structures that carry out functions necessary for the cell to stay alive
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biological molecules
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chemical compounds that provide physical structure and allow a cell to function
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homeostasis
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maintainance of stable internal conditions
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metabolism
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sum of all chemical reactions that take in and transform energy
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cell division
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formation of two new cells from an existing cell
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development
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process by which an organism becomes a mature adult
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reproduction
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process by which organisms produce more organisms like themselves
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gene
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short segment of DNA
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domains
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three major subdivisions of organisms
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kingdoms
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system of grouping organisms into six catagories
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ecology
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study of the environment
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ecosystems
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communities of living species and their physical environment
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evolution
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process by which inherited characteristics within a population change over time
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natural selection
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process of evolution that states that organisms with favorable traits are better able to survive and reproduce more sucessvully than organisms that lack these traits
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adaptations
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traits that improve an individuals ability to survive and reproduce
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