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Unit 3: Community Ecology

By: Mrs. Belcher
Horizontales
Natural ______ has led to predator being highly adapted to catch food AND prey having adaptations to avoid being captured.
A symbiotic relationship between two different species in which one species is helped and the other is harmed.
"_______ Succession" is the development of a community in an area that has not previously supported life.
When organisms of the same or different species attempt to use the same resource in the same place at the same time.
In a predator-prey relationship, the organism that is the food for the other.
External parasites; like, ticks
When similar species coexist, each species uses only part of the available resources. This is called "resource _________."
All of the living organisms found in a particular area.
Species ______ is the number of different species found in a community.
In a predator-prey relationship, the organism that does the killing.
A symbiotic relationship in which both species benefit from the relationship.
The "Species-______ Effect" is a pattern of species richness in which larger areas usually contain more species than smaller areas do.
Animals that eat plants.
Verticales
A close and permanent relationship between two different species.
When 2 species are intense competitors, one or both may evolve niche or anatomical differences to lesson competition. This is called "_______ displacement."
A form of deception in which a harmless species resembles a poisonous, dangerous, or distasteful species.
Internal parasites; like, tapeworms
A symbiotic relationship between two different species in which one species benefits from the relationship and the other species is neither helped nor harmed.
A gradual, sequential regrowth of an area following a disturbance.
Some plants have developed _____ to protect them from being eaten by herbivores.
The interaction in which one organism captures and feeds on another organism.
"_______ species" are the organisms that are generally the first to colonize an area and tend to be small, fast growing, and very fast at reproduction.
A mutualistic relationship between an algae and a fungus and are usually first to colonize a barren area in primary succession.
An event (storm, flood, drought, overgrazing, human activity) that changes a community by removing organisms from it or altering resource availability.
"_______ Succession" is the replacement of species that follows a disturbance in an already existing community. The disturbance has left the existing soil intact.
When organisms are competing for the same resource, there is often a winner and a loser. This is called the competitive _____ principle