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20 Cards in this Set
- Front
- Back
what is the biosphere?
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any part of the globe where living things reside.
examples:land, water, ocean, atmosphere |
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what is a ecosystem?
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community of living things along with non-living things.
examples:all animals, bacteria, air, water, soil |
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What is a community?
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all the living things in the area
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What is an organism?
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an individual living thing. ie:sloth, iguana, bacteria cell
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what are cells?
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basic unit of life(structure and functional unit)
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What is DNA?
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Entire double helix(consists of genes and non-coding regions)
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What are genes?
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a sequence of DNA that codes a protein(protein leads to physical traits)
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what is a species?
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a distinct form of life.
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what is a domain?
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broadest category used to classify life forms
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what does unicellular mean?
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one celled organisms.
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what is prokaryotic?
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cell without a nucleus.
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what is eukaryotic?
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cell with a nucleus.
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what is a system?
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a combination og parts that form a more complex organization.
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what is photosynthesis?
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plants use the sun's energy to convert water and carbon dioxide into sugars
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what are producers?
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organism that makes its own food.
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what is a consumer?
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obtains food by eating producers and/or consumers
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what is homeostasis?
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"steady state" maintained by body.
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what is adaptation?
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a physical feature that helps an organism survive and reproduce in its enviorment.
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what is natural selection?
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differential reproductive success.
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what is evolution?
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a generation to generation change in the proportion of different inherited genes in a population. ie: a change over time
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