Symbiosis Branch of biology dealing with the interactions among organisms. Four Main Types of Symbiotic Relationships: 1.Predation 2.Parasitism 3.Mutualism.

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Symbiosis Branch of biology dealing with the interactions among organisms. Four Main Types of Symbiotic Relationships: 1.Predation 2.Parasitism 3.Mutualism 4.Commensalism

Organism kills and eats another organism. Predation Organism 2 Organism 1

Parasitism Organism 1 Organism 2 One organism uses the other for nutrients and causes that organism harm.

Mutualism Organism 1 Organism 2 Both organisms benefit from each other. Not to be confused with predation…

Commensalism Organism 1 Organism 2 One organism benefits while the other is unaffected.

Recap Organism 1Organism 2 Predation = + dead Parasitism=+- Mutualism=++ Commensalism =+ N/A