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Symbiotic Relationships

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Presentation on theme: "Symbiotic Relationships"— Presentation transcript:

1 Symbiotic Relationships
Parasitism Mutualism Commensalism (Helotism)

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

3 Parasitism

4 Mutualism Lichen on a mangrove tree

5 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.

6 Helotism

7 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

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