Symbiotic Relationships

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Presentation transcript:

Symbiotic Relationships Parasitism Mutualism Commensalism (Helotism)

Lampreys are ectoparasites on lake trout Parasitism Lampreys are ectoparasites on lake trout Endoparasite: Tapeworm

Parasitism

Mutualism Lichen on a mangrove tree

Commensalism This is a DIRECT RELATIONSHIP for the bacteria because the presence of food in the intestine directly affects the bacteria but it doesn't cause disease or death to the other (see example below). Examples: 1) Bacteria inside human intestines that do not cause disease in humans or help humans but who find plenty of food to eat in the intestines.

Helotism

Relationship Summary Relationship Species 1 Species 2 Predator-Prey Predator - Win Prey - Lose Parasitism Parasite - Win Host - Lose Mutualism Win Commensalism Neither Helotism Master - Win Slave - Win