2. Feeding Relationships and Symbiosis

3. State Standards 6th – Life #8 Describe how organisms may interact with one anther 7th - Life #2 -Investigate how organisms or populations may interact with one another through symbiotic relationships and how some species have become so adapted to each other that neither could survive without the other (e.g. Predator- prey, parasitism, mutualism and commensalisms) 7th - Life 8 Investigate the great diversity among organisms

4. Learning Objectives I will be able to describe and provide examples of the 3 different types of symbiosis. I will be able to create a food chain and food web.

5. Symbiosis Symbiosis - is a close relationship between two species that benefits at least one of the species Three Types; mutualism, commensalism and parasitism Symbiosis SongSymbiosis

6. 1. Mutualism - a relationship in which both species benefit Wrasse Cleaning Wrasse & Moray Eel

7. Symbiosis 2. Commensalism - One species benefits and the other species is neither helped nor harmed

8. Symbiosis #3 Parasitism - Involves one organism living on or inside another organism and harming it

9. Feeding Relationships Predation - An interaction in which one organism kills and eats another Killer Whale Predator - the organism that does the killing Prey - An organism that is killed in predation Croc

10. Food Chains Food Chains - The series of events in which one organism eats another

11. Food Web Food Web - The pattern of overlapping food chains in an ecosystem