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21 Cards in this Set
- Front
- Back
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Biosphere
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consists of all the parts of the planet that are inhabited by living things
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Ecosystem
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is the community if living things in an area, along with the nonliving features of the environment that support the living community
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Organism
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an individual living thing
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Cell
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basic unit of living matter; separated from it's environment by a plasma membrane
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DNA
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is the chemical responsible for inheritance - the passing on of traits from parents to offspring
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Genes
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units of inherited information found along the length of each DNA molecule
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Species
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distinct form of life
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Domain
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the broadest category in classifying life forms
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Unicellular
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a type of organism who's body consists entirely of one single cell
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Prokaryotic Cells
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organisms that lack nuclei - their DNA is not separated from the rest of the cell
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Eukaryotic Cells
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organisms that contain nuclei that separate DNA from the rest of the cell
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Multicellular
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organisms that consist of many cells, not just one
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System
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a complex organization formed from a simpler combination of parts
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Photosynthesis
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process by which plants use the sun's energy to convert water and carbon dioxide into sugars
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Producers
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plants and other photosynthetic organisms produce the food upon which the entire ecosystem depends
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Consumers
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animals and other organisms that eat (consume) a portion of the food made by producers
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Homeostasis
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internal stability or "steady state" maintained by the body
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Adaption
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an inherited trait that helps the organism's ability to survive and reproduce in its particular environment
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Population
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a localized group of organisms belonging to the same species
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Natural Selection
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process by which individuals with inherited characteristics well-suited to the environment leave more offspring than other individuals
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Evolution
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a generation-to-generation change in the proportion of different inherited genes in a population
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