1. Symbiotic Relationships

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

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

7. Mutualism Two species live together & both benefit
Tiny fish living within larger fish mouth
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
Lice
Tapeworm

11. Predator and Prey
Prey – food source
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
Example: Food

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