1. Nick Easley

2. Science Grade Level: 5 th Summary: The purpose of this powerpoint is to inform students about interspecific relationships between organisms within an ecosystem. (i.e. mutualism, commensalism, parasitism) Learning Objective: Given the information in the Powerpoint presentation, students will answer the given questions with 100% accuracy. Content Standard: GLE 0507.2.2 Explain how organisms interact through symbiotic, commensal, and parasitic relationships. SPI 0507.2.2 Distinguish among symbiotic, commensal, and parasitic relationships.

3. Interspecific Relationships There are many organisms in each ecosystem. Different species of organisms interact with each other through various interspecific relationships. Today we are learning about symbiotic relationships. These include… Commensalism Mutualism Parasitism

4. Symbiotic Relationships Use the link below to understand the definition of a symbiotic relationship. http://www.thefreedictionary.com/Sy mbiotic+Relationships http://www.thefreedictionary.com/Sy mbiotic+Relationships

5. Commensalism One organism benefits from the relationship while the other organism neither benefits nor is harmed.

6. Mutualism A relationship in which both organisms benefit each other.

7. Parasitism In a relationship of parasitism, one species harms the other in order to benefit itself.

8. Symbiotic Relationships This website shows good interactive examples of mutualism, commensalism, and parasitism. http://www.vtaide.com/png/symbiosis.htm

9. Symbiotic Relationships ://www.youtube.com/watch?v=zSmL2F1t81Q &noredirect=1 ://www.youtube.com/watch?v=zSmL2F1t81Q &noredirect=1 Watch this video about symbiotic relationships in an underwater ecosystem.

10. Select the Correct Answer What is a close, prolonged association between two or more different organisms of different species that may, but does not necessarily, benefit each member? A.SymbiosisSymbiosis B.MutualismMutualism C.CommensalismCommensalism D.ParasitismParasitism

11. That Answer is Correct!

12. Select the Correct Answer What type of relationship does the clownfish have with the anemone? A.MutualismMutualism B.CommensalismCommensalism C.ParasitismParasitism

13. That Answer is Correct!

14. Select the Correct Answer Which is an example of parasitism? A. A bird eating insects off of a buffalo. A bird eating insects off of a buffalo B. A tic on a dog’s ear. A tic on a dog’s ear. C. A shrimp removing parasites from a fish. A shrimp removing parasites from a fish.

15. That Answer is Correct!

16. Select the Correct Answer What is an example of mutualism? A. Barnacles anchored to a whale for food. Barnacles anchored to a whale for food. B. Otters who lie on kelp and eat animals that would eat the kelp. Otters who lie on kelp and eat animals that would eat the kelp. C. Bed Bugs. Bed Bugs.

17. That Answer is Correct!

18. Bonus Question! What famous cartoon fish lived in a mutualistic relationship with his own house? Hint: He lived there with his dad…

19. NEMO!

20. Summary The students have watched a video and gone to websites to learn about symbiotic relationships. They should now have a better understanding of mutualism, commensalism, and parasitism. They also answered questions to exercise their new knowledge.

21. Sorry, that answer is incorrect Click to go back to question

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