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32 Cards in this Set
- Front
- Back
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What is a biosphere?
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consists of all the parts of the planet that are inhabited by living things
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What is an ecosystem?
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the community of living things in an area, along with the nonliving features of the environment that support the living community
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What is an organism?
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individual living things
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What is a cell?
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life's basic units of structure and function
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What is DNA?
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the chemical responsible for inheritance - the passing on of traits from parent organisms to their offspring
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What is a gene?
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units of inherited information
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What are species?
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a distinct form of life
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What is a domain?
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broadest category
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What is unicellular?
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organisms entire consist of just a single cell
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What is a eukaryotic cell?
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cells without nuclei
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What is a eukaryotic cell?
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cells that contain culei that separate DNA from the rest of the cell
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What is multicellular?
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organisms made of many cells
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What is a system?
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a combination of parts can form a more complex organization
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What is photosynthesis?
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the process by which plants make food
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What is a producer?
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produce the food upon which the entire ecosystem depends
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What is a consumer?
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animals and other organisms that eat the food made by the producers
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What is homeostasis?
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a steady state
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What is adaptation?
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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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What is a population?
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a localized group of organisms belonging to the same species
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What is natural selection?
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the natural environment selects certain inherited traits
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What is evolution?
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a generation-to-generation change in the proportion of deferent inherited genes in a population
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What is an observation?
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the use of the senses
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What is data?
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recorded observations
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What is an inference?
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a logical conclusion based on observations
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What is a generalization?
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general conclusion
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What is a hypothesis?
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a suggested answer to a well-defined scientific question
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What is a variable?
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a condition that can differ within the experiment
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What is a controlled experiment?
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an experiment that tests the effect of a single variable
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What is evidence?
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consists of a collected body of data from observations and experiments
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What is a theory?
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a well-tested explanation that makes sense of a great variety of scientific observations
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What is a model?
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physical, mental, or mathematical representations of how people understand a process o an idea
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What is technology?
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applying scientific understanding for some specific purpose
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