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Chapter 4 – Ecosystems – Lesson 3 Sketch Main Idea: Classify Predator-Prey relationships and Parasite-Host relationships. Supporting Details: 1. Predators each, and usually kill, their prey. 2. Parasites feed off of, but usually don’t kill, their hosts. 3. Classify the following relationships (in your notebooks) as predator-and-prey (P-P) or parasite-and-host (P-H): a. Snake and field mouse b. Tick and dog c. Strep throat bacteria and human d. Bird and worm 4. Choose an assignment below to complete: a. Play memory with pictures of the different types of relationships. Match the predator with its prey or the parasite with its host. b. Draw an example of a competitive relationship, a symbiotic relationship and a predator-prey relationship. (yes, all three) c. Illustrate an example of the three different types of Symbiosis; Parasitism, Mutualism & Commensalism. Write Main Idea: Which Organism Benefits Supporting Details: 1. Draw the chart below in your notebooks in the note section. Relationship Predation Examples Lynx Snowshoe hare Parasitism Heartworm Dog Mutualism Bee Flower Commensalism Barnacle Mussel 2. Look at the chart that lists different kinds of relationships between animals and examples of each relationship. Put a checkmark or an X in the box of each organism that benefits from the relationship. 3. Choose one of the relationships from the chart and write s short story about how the two met and what happened to them! Vocabulary Main Idea: Learn Words Supporting Details: 1. Using your Science Book write down the vocabulary words and definitions in your vocabulary section of your notebook. 2. Make sure you write the page number of the vocabulary word to the left of the red line. 3. Don’t forget to highlight, box, or underline the vocabulary word. Chapter 4 – Ecosystems – Lesson 3 1. ____________: One species benefits, the other is harmed. a. Commensalism b. Mutualism c. Parasitism 2. ____________: Both organisms benefit a. Commensalism b. Mutualism c. Parasitism 3. ____________: One organism benefits, the other one is neither helped nor harmed. a. Commensalism b. Mutualism c. Parasitism 4. Which relationship exists between organisms in commensalism? a. Both organisms benefit b. Neither organism benefits c. One organism benefits and the other is harmed d. One organism benefits and the other is neither helped nor harmed 5. ____________: different organisms struggle for limited resources in an ecosystem. a. Host b. Symbiosis c. Parasite d. Competition 6. ____________: a tick that feeds on a deer’s blood. a. Host b. Symbiosis c. Parasite d. Competition 7. ____________: a deer whose blood is being sucked by a tick. a. Host b. Symbiosis c. Parasite d. Competition 8. ____________: a close, beneficial relationship between different species. a. Host b. Symbiosis c. Parasite d. Competition 9. “Oh my gosh, I smell a cat” Said Ted the rat. Now I have this sudden urge to run to it “Ahhhhh” thought Ted. “Here rat here… don’t worry “, said Fluffy the cat. ”I won’t hurt you“, said Fluffy. ”Okay here I come”, said Ted. A couple minutes later….. “Man shouldn’t have walked over to Fluffy”, said Ted from inside Fluffy’s stomach. Then Ted fell into a deep sleep and was never heard from again!! Is the author’s purpose of this paragraph to: a. Persuade b. Inform c. Entertain 10. If you have a cat that ate a rat and that rat ate something that had a disease you might want to take your cat to the doctor because it could make your cat very sick. Is the author’s purpose of this paragraph to: a. Persuade b. Inform c. Entertain