What’s the difference between symbiosis, parasitism, mutualism, and commensalism?



  1. 0 Votes

    Symbiosis – Any long term relationship between two organisms. 

    Paratism – Symbiosis where 1 organism benefits and the other is harmed.  I.E. Fleas, Tape worms, ticks etc. 

    Mutualism – Symbiosis where both organism benefit from the relationship.  I.E. Clown Fish and Anemones, Crocodile and Egyptian Plover, Humans and Probiotics, etc. 

    Commensalism – Symbiosis where 1 organism benefits and the other is neither harmed nor benefits from the relationship.  I.E. Spiders and Plants, Hermit Crabs and Gastropods, etc.

  2. 0 Votes

     Symbiosis is an ecological relationship between two or more different species.   Sometimes a symbiotic relationship benefits both species, sometimes one species benefits at the other’s expense, and sometimes neither species benefits.  In parasitism, one species benefits while the other is harmed.  In mutualism, both species benefit.  In commensalism, one species benefits, while the other is unaffected. 


  3. 0 Votes

    Symbiosis is simply referring to the relationship between two organisms.

    Parasitism is a relationship in which one organism (the parasite) feeds off of another organism (the host). It negatively affects the host.

    Mutualism is a relationship in which both organisms involved positively affect the other.

    Commensalism is a relationship in which one organism benefits from the other while the other remains neutral, affected neither positively nor negatively.

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