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8.2 How Species Interact with Each Other Name______________________________Date________ Reading Guide (p 203) Hr_________ Learning Targets: Explain the difference between a niche and habitat and give examples of niches Describe 5 major types of interactions between species. Explain how symbiotic relationships may evolve Key Terms: niche competition predation parasitism mutualism commensalism symbiosis Two different places where lions exist are described in the first paragraph on page 203. Which lions are in their niche and which ones are in their habitat? Explain. Niche: the unique role of a species within an ecosystem / pattern of use of a habitat. It includes Habitat: a location What is your niche? (use both boxes) Can also be thought as Types of Interactions Between Two Species: copy the chart from Figure 10. Add examples given in the drawing. Interaction (Define the term below) Species A Species B Description Competition Examples from Figure 10. Species A Species B Predation Species A Species B Mutualism Species A Species B Commensalism Species A Species B What is the difference between competition and all other symbiotic relationships? Indirect Competition: Write down the example given in the book where humans are in indirect competition with another organism. Explain it in your own words. How can humans be in direct competition within and between themselves? Be very specific below. Predator-Pray Adaptations: There are four adaptations mentioned in the case study. Describe all four below. Parasitism: How is a parasite similar to a predator? How is it different from a predator? How does Mutualism exist in your body? State the example given for commensalism on page 209. A relationship where two organisms live in close association is called __________________________________. It is most often used to describe a relationship ____________________________________________________________ Short Answer: A tape worm lives in the intestines of a cow and feeds by absorbing food that the cow is digesting. What kind of relationship is this? Explain your answer. Snail kites are predatory birds that feed only on snails. The kites use their hooked, needlelike beaks to pull snails from their shells. Explain how these specialized beaks might have evolved in these birds. Viruses are the cause of many infectious diseases, such as common colds, influenza, and chickenpox. Viruses can be passed from one person to another in many different ways. Under what conditions do you think viral diseases will spread most rapidly among humans? What can be done to slow the spread of these viruses?