? 6. When a flea is living on a dog, the dog is the C. Predator A. Host B. Parasite D. Prey 7. Which pair of organisms show mutualism? A. Aphids and Rose C. Fleas and dog B. Ants and Aphids D. Shark and Remora 8. A relationship between two organisms in which one organism benefits and the other is unaffected? A. Commensalism C. Parasitism B. Competition D. Predation 9. Which of the following is an example that shows a predator adaptation? A. A fish's fin C. A dog's powerful teeth B. A frog's bright colors D. A plants's bright flowers 10. The cat kills the rat before eating it. Which word refers to the cat? A. Host B. Predator D. Symbiosis C. Prey