<p> Unit 10: Ecology Review Sheet</p><p>1. What is Ecology?</p><p>2. What is the original source of energy for most living things? ______</p><p> a. If you can take this energy and turn it into food you are called an ______or a ______. b. The process of turning light into energy is called ______. c. The process of using chemicals to create energy is called ______.</p><p>3. If you must consume your food to get energy you are called a ______or a ______.</p><p>4. Where do the following organisms get their energy? a. Herbivore: b. Carnivore: c. Omnivore: d. Detritivore/Scavenger: e. Decomposer:</p><p>5. What is each step in the transfer of energy and matter within a food web called? </p><p> a. Only ______% of the energy stored in an organism is passed on to the next trophic level. </p><p> b. Where does the rest of the energy go?</p><p>6. What are the three ways to show energy transfer?</p><p> a. Of those ways, what are the three types of pyramids?</p><p> b. What does biomass mean? 7. What does abiotic mean? ______List some abiotic factors:</p><p>8. What does biotic mean? ______List some biotic factors:</p><p>9. Define niche.</p><p> a. Define habitat. </p><p> b. What four main things must an organism get from their habitat?</p><p>10. What are the 6 levels of ecological organization (opcebb)?</p><p> a. Which term is the first to incorporate abiotic factors?</p><p> b. Which level refers to the combined portions of the earth?</p><p>11. What is primary succession? </p><p> a. How is it different from secondary? </p><p> b. Which type of succession occurs faster?</p><p>12. ______+ ______= climate a. What other two factors might influence climate (think of our map): b. Which two biomes receive the least amount of precipitation?</p><p> c. Which biome has the most biodiversity (overall plants and animals)?</p><p> d. Which biome is the coldest and has permafrost?</p><p>13. Define and give an example for each of the three main types of symbiotic relationships: a. Mutualism-</p><p> b. Commensalism-</p><p> c. Parasitism-</p><p>14. What is predation?</p><p> a. Give one example of a predator/ prey relationship.</p><p> b. What increases competition?</p><p>15. If an organism moves into an area it is an ______.</p><p>16. If an organism moves out of an area it is an ______.</p><p>17. Define limiting factor. </p><p>18. What is the carrying capacity?</p><p> a. How does the limiting factor affect carrying capacity? 19. List two ways that a population can decrease in size.</p><p> a. List two ways a population can stay the same size.</p><p> b. List two ways a population can increase in size.</p><p>20. What is demography?</p><p>21. List three density-dependent factors.</p><p>22. List three density-independent factors.</p><p>23. Draw a small food chain, including: lion, zebra, grass and sun.</p><p> a. How many steps is the lion away from the sun? </p><p> b. What level consumer would the lion be?</p><p> c. If the grass received 100 calories from the sun, how many of those calories would the lion receive (think 10% rule)?</p><p> d. Compare the amount of energy the lion would receive if it ate the grass to the amount it gets eating the zebra.</p>