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Grade 9 BIOLOGY FINAL EXAM REVIEW QUESTIONS year 2009-2010, Mr. Daigle, Mr. Jackson, Mr. Nickles, Mrs. Nigzus 1. Define Biology 2. Define homeostasis 3. What is a compound? Isotope? 4. What elements make up a molecule of water? 5. An ion forms when an atom gains or loses an: 6. Living things are made of many compounds, the most abundant one being: 7. What does it mean that a water molecule is polar? 8. What are the building blocks of protein? Carbohydrates? Fats? 9. Which macromolecule is the main source of energy for living things? 10. What are enzymes? Catalysts? 11. Define ecology. 12. In what order (smallest to largest) would you list the following: community, biome, population, ecosystem, species. 13. What is the original source of all energy in an ecosystem? 14. Know these terms: consumer, producer, autotroph, heterotroph, decomposer, carnivore, herbivore, omnivore, detritivore. 15. What is a food chain? Food web? 16. Define biomass. 17. Describe the trophic level in a food chain. 18. How is energy transferred from one trophic level to the next? What is the 10% rule ? 19. What is nitrogen fixation? 20. Know the water, carbon and nitrogen cycles!! 21. What is an Abiotic factor? A biotic factor? 22. What is symbiosis? Name the three types of symbiotic relationships and what they mean. 23. What is a carrying capacity of an ecosystem? 24. Put in correct order: tissue – cell – organ – organ system. 25. What is a prokaryote? Eukaryote? 26. What are CHNOPS? 27. Define solvent, solute. 28. The pH scale starts with acids at _______ neutral is______bases are______________. 29. List the 8 characteristics of life. 30. What is binomial nomenclature? 31. Describe Linnaeus’s system: 32. What is a taxon? What characteristics are common to each kingdom? 33. What is a scientific name? How is it always written? 34. What is the order of categories in taxonomy? 35. What is immigration? What is emigration? 36. Describe invasive species 37. What is biodiversity? 38. What is the greenhouse effect? What is global warming? 39. What is the prediction for the human population by year 2050? 40. Describe a predator/prey relationship 41. Define biosphere 42. What characteristics are common to the class Mammalia? 43. What is a domain? 44. What is DDT? What happens to the concentration of DDT as is transfers up a food chain? 45. Describe a covalent bond, and ionic bond, and a hydrogen bond.