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Understanding Ecosystem Energy Flow and the Impact of Global Warming

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virote
30 diapositives · 443 Views · Jul 24, 2014

This review explores the dynamics of energy flow in ecosystems, detailing food chains and webs. It addresses key questions such as the role of herbivores like rabbits, the consequences of decreasing populations of species like mice, and the distinctions between food chains and webs. Additionally, it examines the impact of human activities on climate change, greenhouse gas emissions, and the importance of the carbon cycle. Readers will gain insights into how global warming affects various ecosystems and species, including the implications for human health and environmental sustainability.

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  1. Review by Lakshmi Chapter 41

  2. Which food chain correctly describes the flow of energy in an ecosystem? A. grass-->cow-->human B. caterpillar-->leaf-->human C. cow-->grass-->human D. leaf-->bird-->caterpillar

  3. Rabbits eat grass and other Plants to survive, but they do not eat animals. What kind of animal are rabbits? A. decomposers B. carnivores C. producers D. herbivores

  4. What will happen if the number of mouse decreased in this food chain? What is the difference between food chain and food web?

  5. In this food web, is the Bear a secondary consumer Or tertiary consumer? What is the only tertiary consumer in this food web according to the illustration?

  6. Which number on the diagram below shows the location of the secondary consumers?

  7. Look at the following energy pyramid. If the producers have 7000 kcal of energy, how much energy will be available for the Sheephead ?

  8. Which level of this food pyramid represents the largest amount of organisms? Producers, b) primary consumers, c) secondary consumers, d) 3rd level consumers.

  9. If birds eat insects that feed on corn, which pyramid level would birds occupy?

  10. Which of the following is a greenhouse gas that is released by human activities and speeds up global warming? Petroleum Natural gas Carbon dioxide Nuclear power

  11. Which of the following human activities does NOT release carbon dioxide into the atmosphere? Deforestation Fishing Burning fossil fuels Driving

  12. As global warming increases, the intensity of what type of storm That hits coastlines is predicted to increase? Tsunami Cyclone Earthquakes tornadoes

  13. Rising water temperature is a result of global warming and may eventually result increase in sea levels due to the dissolving of what? Mountains Wetlands Riverbeds Glaciers

  14. 1.Draw a neat labeled diagram of a terrestrial chain showing all trophic levels 2. Draw a neat labeled diagram of a marine food chain. 3. Draw energy pyramid of prairie ecosystem

  15. Which of the following is NOT a negative effect of global warming? Larger fish population New infectious diseases Species extinction Loss of coastal areas

  16. What would happen if the number of mouse decreased in this food chain? What is the difference between a food chain and a food web?

  17. Which country emits most carbon dioxide? Japan United States China India

  18. As air pollution continues to be released into the atmosphere, What becomes more depleted, resulting in an increase of Ultraviolet radiation on earth? Oceans Rainforest Ozone layer Carbon dioxide

  19. To which group do the following belong to? What would happen to the world without these organisms?

  20. Can someone explain carbon cycle? How humans have affected carbon cycle and what are the implications for future Climate?

  21. Learn the key processes In water cycle.

  22. Acid rain - Cause

  23. Which organism is most affected by the application of DDT? Explain What is the impact of DDT on animals, humans?