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31 Cards in this Set
- Front
- Back
hypothesis
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proposed explanation of the phenomenon under study
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dependent variable
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the variable under study in an experiment
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independent variable
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the factor(s) that influence the dependent variable.
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quantitative data
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the resulting number
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qualitative data
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the condition of the results
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biotic factors
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living components
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abiotic factors
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non-living components
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habitat
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the location and condition where an organism lives.
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threatened
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when a species is at risk of being endangered
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endangered
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when a species is at risk of being extinct
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extinct
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when a species ceases to exist.
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invertebrates
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no back bone
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crustacean
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an aquatic invertebrate
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detrivore
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organisms that feed on dead, decaying plant matter (detritus)
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humus
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the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.
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biodiversity
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many different kinds of organisms living together in the same area
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abundance
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the number of individual organisms found in an area
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species diversity
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number of different species found in a given area
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niche
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a position or role taken by a kind of organism within its community.
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quadrat
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1m X 1m
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generalist
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a species native to many areas
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specialist
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a species specific to only a few areas
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forb
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a herbaceous flowering plant other than a grass.
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invasive
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tending to spread prolifically and undesirably or harmfully.
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spectrophotometer
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detects color intensity
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pH
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potential hydrogen level
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turbidity
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cloudy, opaque, or thick with suspended matter
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benthic
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the flora and fauna found on the bottom, or in the bottom sediments, of a sea, lake, or other body of water.
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larva
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an immature form of other animals that undergo some metamorphosis
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nymph
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an immature form of an insect that does not change greatly as it grows
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riffle
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a rocky or shallow part of a stream or river with rough water.
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