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Chapter 27 Terms
Chapter 27 Biology Terms
29
Biology
Undergraduate 1
09/19/2013

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Term
Aggressive mimicry
Definition
When a species evolves to mimic something to entice its prey to come closer.
Term
Biome
Definition
A diverse assortment of ecosystems formed over broad geographical regions and have extensive areas of different plant communities.
Term
Camouflage
Definition
Covering that hides an animal even when in plain sight.
Term
Climax community
Definition
When succession progresses to a diverse and relatively stable community.
Term
Coevolution
Definition
When two species act as natural selection agents for each other.
Term
Commensalism
Definition
A relationship when one species benefits and the other is unaffected.
Term
Community
Definition
All the interacting species in an ecosystem.
Term
Competition
Definition
Interaction between individuals for the use of resources.
Term
Competitive exclusion principle
Definition
When two species are placed in the same niche and required to compete for resource, one will eventually overcome the other.
Term
Disturbance
Definition
An event preceding succession that disrupts the community.
Term
Ecological niche
Definition
You need to eat species, an area that encompasses all aspects of its way of life including it's physical home or habitat.
Term
Herbivore
Definition
Animals that eat plants and anything nonmeat
Term
Interspecific competition
Definition
Describes competitive interaction between different species
Term
Intertidal zone
Definition
The part of the shoreline that is alternatively covered and exposed by times.
Term
Intraspecific competition
Definition
Competition between members of the same species.
Term
Invasive species
Definition
Species introduced to an ecosystem where they did not evolve.
Term
Keystone species
Definition
Play a major role in determining community structure. Removing this individual would be detrimental to the balance of that environment.
Term
Mimicry
Definition
When a species has evolved to resemble another organism.
Term
Mutualism
Definition
When two species interact in a way that benefits both.
Term
Parasite
Definition
They live in or on their prey and benefit while there who suffers and dies slowly
Term
Pioneer
Definition
If you plant invaders that begin a secession.
Term
Primary secession
Definition
When a community college arises bare rock where there is no trace of prior community.
Term
Resource partitioning
Definition
And evolutionary adaption that reduces harmful effects of interspecific competition.
Term
Secondary secession
Definition
When a new community is formed after the disturbance of the first community.
Term
Startle coloration
Definition
When species evolved colors that mimic that of a bigger predator.
Term
Sub climax
Definition
When a community cannot climax because of recurring disturbances.
Term
Succession
Definition
Structural change in a community and it’s nonliving environment over time.
Term
Symbiosis
Definition
When different species live amongst each other. Means “living together."
Term
Warning coloration
Definition
Animals that have evolved colorings that tell predators they are poisonous or distasteful.
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