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Biotic relationships in the environment
N/A
15
Biology
11th Grade
06/13/2011

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Term
Intraspecific relationships
Definition
Occur between organisms of the same species
Term
Interspecific relationships
Definition
Occur between organisms of different species
Term
Symbiosis
Definition
Where different species live in close association with each other
Term
Examples of symbiosis are
Definition
Parasitism, mutualism, and commensalism
Term
Predation
Definition
Involves one species (predator) capturing and killing other animals (prey) for their food
Term
Commensalism
Definition
Is a relationship between two species where one species benefits and the other is not harmed
Term
Examples of commensalism
Definition
Barnacles and Remora fish on whales, orchids living in trees
Term
Mutualism
Definition
Occurs when different species get some benefit from living together.
Term
Examples of mutualism
Definition
Cleaner fish on fish, lichen is an association between algae and fungus
Term
Parasitism
Definition
Is a feeding relationship where a parasite feeds on its hosts tissues, the parasite benefits but the host may be harmed
Term
Ectoparasites
Definition
live on their host, eg ticks, fleas. leeches
Term
Endoparasites
Definition
live inside their host, eg tapeworms, flatworms, bacteria, fungi, viruses
Term
Allelopathy
Definition
Allelopathy is the production by a plant of specific chemicals (allelochemicals) that can be harmful or beneficial to another plant, a process where allelochemicals are released which influence the growth of other organisms
Term
Allelochemicals can do what?
Definition
Repel predators and parasites, poison competitors, prevent seed germination, deform roots
Term
Plants that perform allelopathy
Definition
Pine and She-oak(allocasuarina)
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