Mr. Lee's Symbiosis Rap
by Sally Bair
1. Parasitism
1.1. Leeches, Fleas, Ticks
1.1.1. Receives some benefit from host
1.2. Host
1.2.1. Affected but should not be deadly
2. Commensalism
2.1. Snake
2.1.1. Camoflauge
2.2. Tree
2.2.1. Not affected
3. Mutualism
3.1. Hippo
3.1.1. No parasites
3.2. Bird
3.2.1. Ride