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Plant-Prey Adaptations
Thorns, Poisenous
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Three types of Symbiosis
Parasitism, Mutualism, Commensalism
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Secondary Succession
The sequential replacement of species that follows disruption of an existing community.
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Primary Succession
Is the developmental of a community in an area that has not supported life preciously.
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Identify 4 possible results of interspecific competition
Character displacement, reduced niche size, competitive exclusion, resource partitioning
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Species Richness
the number of species in a community
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species evenness
the relative abunance of each species
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Mutualism
both organisms benefit from each other
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Parasitism
one organism lives off of another
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competition
when two or more organisms use the same limited resources
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species richness and lattitude
the closer a community is to the equator, the more species it contains
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species richness and community stability
a number of organisms may depend on a certain type of disturbance to survive
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species richness and habitat size
larger areas usually contain more species than smaller areas
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species richness and species interactions
studies have demonstrated that predators can prevent competative exclusion in their prey
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How do Mutualism and Commensalism differ? Give Examples.
Mutualism is when bother organisms are helped and commensalism is when 1 organism is helped and the other is neither helped nor harmed.
Mutualism: Ants and Acacia plants
Commensalism: Cattle Egrets and Cape Buffaloes
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How are parasites similar to predators?
One organism is harmed while the other benefits
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Commensalism
one organism beefits while the other is neither helped nor harmed
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Competitive Exclusion
Two species that compete for the exact same resources cannot stably coexist
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Predation
an individual of one species eats all or part of any individual of another species
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Predator Adaptations
sticky webs for spiders, sharp teeth, speed
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Animal-Prey Adaptations
Mimicry, poisen
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