1. Do Now – Level 0 EMI 402

2. What is symbiosis? What it means: Two organisms of different species that live together At least one of the organisms benefits from the relationship Literal definition: the act of living together

3. What are the 3 different kinds of symbiosis? MutualismParasitismCommensalim both organisms benefit one organism benefits one organism is unaffected one organism is harmed

4. Section 2.1 Summary – pages 35 - 45 Mutualism A symbiotic relationship in which both species benefit is called mutualism. A symbiotic relationship in which both species benefit is called mutualism. This little fish is helping me by cleaning my teeth!!! Yeah!!! I’m eating the big fish’s food so he’s helping me too! Yeah!!! Moray Eel with Cleaner Fish

5. Mutualism: both benefit Moray Eel gets a clean mouth Cleaner Fish gets a meal

6. Mutualism: both benefit Antelope with Oxbird Antelope gets rid of parasites Oxbird gets a meal

7. Mutualism and flowers! Flowers provide food for insects. Insects spread the seeds of flowers. Both organisms benefit!

8. Commensalism Commensalism is a symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited. Commensalism is a symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited. Yay!! “Hakuna Matata” or Whatever!

9. Section 2.1 Summary – pages 35 - 45 Commensalism In this picture, Spanish moss is growing on the trees. The moss benefits because it has a place to live, and the tree doesn’t care.

10. Commensalism: one benefits, one is unaffected Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects

11. Commensalism: one benefits, one is unaffected Clown fish with Anemone Clown fish gets protection from larger fish Anemone is unaffected

12. Section 2.1 Summary – pages 35 - 45 Parasitism A symbiotic relationship in which a member of one species benefits and the other species is harmed is called parasitism.

13. Dog and Heartworm Heartworms are a type of worm that live inside a dog’s heart. They use that space for their house, and feed off of the nutrients inside the dog’s body. This causes the dog to get very, very sick and sometimes die. Parasitism!!!

14. Parasitism: one benefits, one is harmed Example 6: Taenia worm in human eye Worm infects human blood stream Human may go blind

15. Section 2.1 Summary – pages 35 - 45 Parasitism Parasites have evolved in such a way that they harm, but usually do not kill the host species. Parasites have evolved in such a way that they harm, but usually do not kill the host species. Tapeworms are parasites. They attach to your intestines and suck out all of your food. the tapeworm benefits, and the host is harmed because they slowly starve to death. One of the ways to get rid of a tapeworm is to starve yourself and then place a piece of meat in front of your mouth. The tapeworm will smell the meat and climb up your throat and out of your mouth.

16. Guinea Worm-Another parasite!

17. Section 2.1 Summary – pages 35 - 45 Predation A predator is a type of consumer. Predators seek out and eat other organisms. A predator is a type of consumer. Predators seek out and eat other organisms. Predator Prey

18. Symbiosis Video http://www.youtube.com/watch?v=uxVMeLWzB_o