ISB 202 Final Review Questions

ISB 202 Final Review Questions - 1. 2. ISB 202 30?s Fall...

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30?’s Fall 2008 Final Exam Study Questions 1. When one species of organisms is eliminated from the biosphere, why are other species affected? ** we are entirely dependent upon the diversity of species for life!! -- food, fiber, new medicines, etc. -- waste treatment -- part of our own internal systems, e.g., digestion -- recycling nutrients in nature 2. Why was the gall fly introduced into Montana in the 1970s? How/why has the gall fly introduction influenced the incidence of hantavirus in humans? 3. Just like plants, most animals are autotrophic, right? Heterotropic- ingest (eat or parasitize) other organisms 4. About how many million species of animals are known to exist? 2 5. Most animal species are invertebrates. True or False? True 6. Most animals exhibit bilateral symmetry. What type of symmetry is exhibited by things like starfish? Radial- symmetrical around a central axis (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? No you get salmonella 9. What phylum of animals was first to have a complete digestive system? **Roundworms first to have complete digestive system 10. What phylum of animals was the first to have organs? Flatworms- first animals with organs 11. What phylum of animals was the first to have tissues? Cnidarians were the first ones with tissues 12. What phylum of animals has no tissues or organs and also lacks symmetry? Sponges- no tissues, no organs, no symmetry 13. What does “coelum” mean? What phylum of animals was the first to have coelomate bodies? Mollusks-first with a body cavity 14. There are 11 phyla of animals, ranging from the sponges to the “highest form,” the chordates . 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? Life cycle requires a certain kind of snail. Larvae multiply inside the snail 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? more species of insects, but not greater than total numbers 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? From undercooked beef, pork and fish 19. What slimy little garden creature is a common example of the mollusk phylum of animals? snails, octopi, and scallops 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? earthworm 21. Which phylum makes up over half of the total known species of animals in the world? (Insects are part of this phylum!) Arthropods 22. What “crustacean” is included in the name of a U.S. national restaurant chain? lobster 23. Does a millipede really have a thousand legs? 24.
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This note was uploaded on 04/21/2011 for the course ISB 202 taught by Professor Johnson during the Fall '08 term at University of Michigan.

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ISB 202 Final Review Questions - 1. 2. ISB 202 30?s Fall...

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