1. Symbiotic Relationships

2. Symbiosis Relationships between organisms in a community. Relationships between organisms in a community. Include both beneficial & harmful relationships Include both beneficial & harmful relationships

3. Commensalism –One species benefits, other not harmed Barnacle living on whale’s back Barnacle living on whale’s back Birds & grazing animals Birds & grazing animals Clown fish and Manta Ray Clown fish and Manta Ray

7. Mutualism –Two species live together & both benefit Tiny fish living within larger fish mouth Tiny fish living within larger fish mouth Stinging ants & bull’s horn acacias Stinging ants & bull’s horn acacias

9. Parasitism –One organism lives on or inside another organism & harms it. It needs a host to survive. Leech Leech Lice Lice Tapeworm Tapeworm

11. Predator and Prey Prey – food source Prey – food source Predator - hunts the prey Predator - hunts the prey

13. Inter Specific Competition Is a form of competition in which individuals of Different species compete for the same resource in an ecosystem Is a form of competition in which individuals of Different species compete for the same resource in an ecosystem Example: Food Example: Food

15. Intra Specific Competition Form of competition in which members of the SAME species vie for the same resource in an ecosystem Form of competition in which members of the SAME species vie for the same resource in an ecosystem Example: food, light, mates Example: food, light, mates