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Gravity, plants, oxygen 1. Which organism below would be the dominant species in the climax community? Hickory Trees 5. Find a negative impact on the environment? Use of pesticides to regulate insect populations 3. Deforestation of the tropical rain forest could limit future agricultural and medical advances due to _______________________. Loss of biodiversity 6. Why does the tropical rainforest have more biodiversity than the desert? A desert contains less water 9. What activities contribute to the increase of carbon dioxide in the atmosphere? Increase in deforestation, automobiles and factories 2. Which organism below would be the pioneer species? Crabgrass and other weeds 4. Find a positive human impact on the environment. Planting trees and terracing to prevent erosion 13. What pattern does the deposition of sediments by running water create? Delta 19. What natural ecological event can you infer would happen after a forest fire? Secondary Succession 11. What is an effect of global warming? Rising sea levels and flooding coastal areas 12. How does deforestation affect the atmosphere? Increase in CO2 27. Describe the flow of energy and the movement of chemical compounds in an ecosystem. Chemical compounds are recycled while energy is transferred from one organism to another 18. What might happen if a factory was built on top of an aquifer? Reduce recharge, polluted groundwater, lower level of water table 14. A biodiverse ecosystem will result in ____________. Sustainability 22. Rocks must be ___________ in order for groundwater to move. Porous 28. What would a spacecraft need in order to support life? Air pressure like Earth, insulation from solar heating, water recovery system 23. Would a large decrease in sunlight or a large increase in carnivores have a greater effect on an ecosystem? Decrease in Sunlight 7. Identify the abiotic factors that can limit an organism’s survival. Oxygen, water, minerals, temperature, climate 15. Find (draw) a graph that illustrates species B is better adapted to a particular environment. 24. Find(draw) a graph that represents a population that grew and remained at the carrying capacity of its ecosystem. 8. What erosion pattern does glacial ice leave? U-shaped Valleys 30. What is the importance of composting? Recycling nutrients 10. What causes river banks to change shape after a flood? Deposition of Sediment 29. Find(draw) a plant with low turgor pressure? 16. What human activity reduces the water table the most? Irrigation of farmland 26. Why is it necessary to conserve trees? Natural habitats for organisms and reduced oxygen levels in the atmosphere 17. Find (draw) a graph illustrating species A is a predator to species B. B A 20. A mature forest ecosystem is most likely a good example of a ____________________. Climax Community 25. Why would a plant reserve some of the oxygen that it produces during photosynthesis? For Cellular Respiration 21. The first organisms to repopulate areas destroyed by a catastrophic event are ____________________ _____________________. Pioneer Species 31. What is the purpose of the decomposer? Converts organic waste into usable compounds 34. Why is the water cycle important to life on Earth? It recycles water from all parts of the Earth 33. Which tropic level in an energy pyramid would have the greatest amount of available energy? First Trophic Level-Producers 32. What are some characteristics of the Earth that make it a place where we can breathe?