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SYMBIOSIS NOTES
Relationships among organisms in a community:Predation One population (predator) captures and
feeds upon another population (prey)Competition Two populations struggle for the same
resourceSymbiosis When one species lives in close
association with another species over a period of time
3 TYPES OF SYMBIOSIS
MUTUALISMRelationship in which both species benefit
MUTUALISMEx. Honeybees/ Flowers
MUTUALISMEx. Ostrich/ Gazelle
PARASITISMRelationship where one
species is helped and the other is harmed
PARASITISMEx. Dogs/Ticks
PARASITISMEx. Mistletoe/
Spruce Tree
COMMENSALISMRelationship in which one
species benefits and the other is neither harmed nor helped
COMMENSALISMEx. Whale/Barnacle
COMMENSALISMEx. Hermit Crab/ Snail Shell