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N5 Unit 3 LE2
Distribution of Organisms
10
Biology
Not Applicable
01/17/2018

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Term
biotic factors (definition)
Definition
Living organisms that can affect other populations in an ecosystem
Term
biotic factors (examples)
Definition
disease, food availability, grazing and predation are biotic factors
Term
abiotic factors (definition)
Definition
non-living factor that can affect populations in an ecosystem
Term
abiotic factors (examples)
Definition
light intensity, moisture, pH and temperature
Term
Biodiversity
Definition
the variety and variability of life on Earth
Term
Indicator Species
Definition
organisms that by their presence or absence indicate environmental quality/levels of pollution
Term
Sampling technique
Definition
methods of counting some of the organisms in an area and using the data to estimate the whole population
Term
pitfall trap
Definition
sampling technique used to estimate the population of ground crawling insects
Term
Quadrat
Definition
sampling technique used to estimate the population of plants
Term
Transect line
Definition
path along which you count and record the species of study and measures biotic factors
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