Ecosystem Of DMAE
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Ecosystem
Organisms
Populations
Communities
Factors in Ecosystem
Biotic Factors
Abiotic Factors
Interactions Abiotic/Biotic
Habitats
Habitat 1
Habitat 2
Habitat 3
Niches
Niche 1
Niche 2
Niche 3
Symbiotic Relationships
Mutualism
Commensalism
Parasitism
Energy Transfer
Autotrophs
Heterotrophs
Decomposers
Food Chain
Food Web
Energy Pyramid
Commensalism:
a relationships between 2 organisms where one organism benefits from the other organism and the other doesn't gain any benefit.
In this picture, the Robin is benefiting from the tree for shelter, food supply, and safety. Yet the tree is not gaining or losing anything.