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Ecology Practice Test

This practice test includes questions on various ecological concepts such as chemical reactions, primary consumers, decomposers, deforestation, carbon cycle, greenhouse gases, energy transfer, and the importance of herbivores.

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Ecology Practice Test

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  1. Ecology Practice Test

  2. 1. What chemical reaction releases the free energy of organic compounds for use by organisms? • Photosynthesis • Protein synthesis • Chemosynthesis • Cell respiration

  3. 2. Which of these is a type of primary consumer in an ecosystem? • Carnivore • Detrivore • Herbivore • Omnivore

  4. 3. Which kingdoms have members who are decomposers? Choose all that apply. • Monera (bacteria) • Protista • Fungi • Animalia

  5. 4. In what way does deforestation contribute to the lack of nutrients available in soil? • the lack of tree roots won’t hold in soil, leading to soil loss • slash and burn agriculture returns nutrients to the soil • the lack of shading from the trees cause evaporation of water • decomposers will find other sources of organic matter to use

  6. 5. All organisms contribute to the carbon cycle through the process of ___. • Protein synthesis • Cell respiration • Photosynthesis • Chemosynthesis

  7. 6. After an organism dies, nitrogen is returned to the soil in the form of ___. • Nitrogen gas • proteins • Ammonia • nitrates

  8. 7. Which one of these is a greenhouse gas? Choose all that apply. • Oxygen • Nitrogen • Water vapor • Carbon dioxide

  9. 8. If an energy pyramid has a total of 500,000 calories at its base, how many calories are transferred to its TERTIARY consumers? • 5000 • 500 • 25,000 • 2500

  10. 9. Organisms store energy in the form of ___. • Chemical energy • Free energy • Heat energy • light

  11. 10. Why are herbivores crucial to the success of ecosystems? • They are not eating up other consumers • They are able to transform organic matter into inorganic matter. • They are able to transform nitrates into proteins. • They are able to concentrate the proteins from producers.

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