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final exam study guide - ISB 202 Spring 2009 Final Exam...

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ISB 202 Spring 2009 Final Exam Study Questions 1. When one species of organisms is eliminated from the biosphere, why are other species affected? 2. Just like plants, most animals are autotrophic, right? 3. A recent science headline shows that DNA testing is more reliable than a pap smear in detecting cervical cancer. True or False? 4. About how many million species of animals are known to exist? 5. Most animal species are invertebrates. True or False? 6. Most animals exhibit bilateral symmetry. What type of symmetry is exhibited by things like starfish? 7. What animal is responsible for producing most of the limestone that exists on Earth? 8. We don’t get tapeworms from chicken meat, so is eating under-cooked chicken safe? 9. What phylum of animals was first to have a complete digestive system? 10. What phylum of animals was the first to have organs? 11. What phylum of animals was the first to have tissues? 12. What phylum of animals has no tissues or organs and also lacks symmetry? 13. What does “coelum” mean? What phylum of animals was the first to have coelomate bodies? 14. There are 11 phyla of animals, ranging from the sponges to the “highest form,” the __________. 15. Blood flukes are flatworms that cause shistosomiasis in humans, especially in developing countries. What other animal is involved in the reproductive cycle of blood flukes? 16. While there may be fewer species of them, how does the number of individual roundworms (nematodes) on Earth compare to the number of insects? 17. One kind of roundworm plugs the lymph system of humans, leading to a disease called _____________. 18. What is the major way in which humans get tapeworms? 19. What slimy little garden creature is a common example of the mollusk phylum of animals? 20. The annelid phylum is composed of creatures with segmented bodies. What type of annelid is seen on MSU sidewalks in the early spring months after rainy nights?
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