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21 Cards in this Set
- Front
- Back
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all the parts of the planet that are inhabited by living things
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biosphere
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community of living things plus the nonliving features of the environment that supports them
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ecosystem
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living thing
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organism
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basic unit of living matter
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cell
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the chemical responsible for inheritance
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DNA
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unit of inherited information in DNA
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gene
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distinct form of life
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species
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broadest category used to classify
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domain
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consisting of a single cell
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unicellular
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cell lacking a nucleus and other internal organelles
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prokaryotic
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cell with nucleus and other internal organelles
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eukaryotic
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consisting of many cells
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multicellular
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complex organization formed from a simpler combination of parts
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system
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plants use the sun's energy to convert water and carbon dioxide into sugar
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photosynthesis
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organism that makes its own food
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producer
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obtains food by eating
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consumer
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steady state maintained by the body-internal stability
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homeostasis
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inherited characteristic that improves an organism's ability to survive and reproduce in a particular environment
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adaptation
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group of individuals of the same species living in a particular area at the same time
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population
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process by which individuals with inherited characteristics well-suited to the environment leave more offspring than do other individuals
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natural selection
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generation-to-generation change in the proportion of different inherited genes in a population that accounts for all of the changes that have transformed life over an immense time
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evolution
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