Appendix H: Ecosystem Relationships Answer Key Name _____________________________ Definition Symbol Example Organisms interact because Cheetah and lion (feed Competition they are fighting over a on similar prey) resource. One animal hunts, attacks Predation Fox and rabbit and eats another organism. A relationship between two Symbiosis different organisms in an ecosystem. A relationship where one +, 0 Commensalism organism is benefitted and Remora fish and shark the other is not affected. A relationship where both Clark’s Nutcracker and +, + Mutualism organisms benefit. Whitebark Pine A relationship where one Jewel Wasp and organism is benefitted and +, - Parasitism the other is hurt. Cockroach
Appendix H: Ecosystem Relationships Answer Key Name _____________________________ Definition Symbol Example Competition Organisms interact because they are fighting over a resource. Cheetah and lion (feed on similar prey) Predation One animal hunts, attacks and eats another organism. Fox and rabbit Symbiosis A relationship between two different organisms in an ecosystem. Commensalism A relationship where one organism is benefitted and the other is not affected. +, 0 Remora fish and shark Mutualism A relationship where both organisms benefit. +, + Clark’s Nutcracker and Whitebark Pine Parasitism A relationship where one organism is benefitted and the other is hurt. +, - Jewel Wasp and Cockroach
The-Game-of-Life...Science.FINAL_.docx