1. SYMBIOSIS NOTES

2. Relationships among organisms in a community: Predation  One population (predator) captures and feeds upon another population (prey) Competition  Two populations struggle for the same resource Symbiosis  When one species lives in close association with another species over a period of time

3. 3 TYPES OF SYMBIOSIS

4. MUTUALISM  Relationship in which both species benefit

5. MUTUALISM Ex. Honeybees/ Flowers

6. MUTUALISM Ex. Ostrich/ Gazelle

7. PARASITISM  Relationship where one species is helped and the other is harmed

8. PARASITISM Ex. Dogs/Ticks

9. PARASITISM Ex. Mistletoe/ Spruce Tree

10. COMMENSALISM  Relationship in which one species benefits and the other is neither harmed nor helped

11. COMMENSALISM  Ex. Whale/Barnacle

12. COMMENSALISM Ex. Hermit Crab/ Snail Shell