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ECOLOGY PRACTICE QUESTIONS (Serie #1) 1) How are matter and energy used in ecosystems? A) Matter is cycled through ecosystems; energy is not. B) Energy is cycled through ecosystems; matter is not. C) Energy can be converted into matter; matter cannot be converted into energy. D) Matter can be converted into energy; energy cannot be converted into matter. E) Matter is used in ecosystems; energy is not 2) A cow's herbivorous diet indicates that it is a(n) A) primary consumer. B) secondary consumer. C) decomposer. D) autotroph. E) producer. 3) To recycle nutrients, the minimum an ecosystem must have is A) producers. B) producers and decomposers. C) producers, primary consumers, and decomposers. D) producers, primary consumers, secondary consumers, and decomposers. E) producers, primary consumers, secondary consumers, top carnivores, and decomposers. 4) Which of the following terms encompasses all of the others? A) heterotrophs B) herbivores C) carnivores D) primary consumers E) secondary consumers 5) Which of the following are responsible for the conversion of most organic material into CO2, which can be utilized in primary production? A) autotrophs B) detrivores C) primary consumers D) herbivores E) carnivores 6) Of the following pairs, which are the main decomposers in a terrestrial ecosystem? A) fungi and prokaryotes B) plants and mosses C) insects and mollusks D) mammals and birds E) annelids and nematodes
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7) Many homeowners mow their lawns during the summer and collect the clippings, which are then hauled to the local landfill. Which of the following actions would most benefit the local ecosystem? A) Allow sheep to graze the lawn and then collect the sheep's feces to be delivered to the landfill. B) Collect the lawn clippings and burn them. C) Either collect the clippings and add them to a compost pile, or don't collect the clippings and let them decompose into the lawn. D) Collect the clippings and wash them into the nearest storm sewer that feeds into the local lake. E) Dig up the lawn and cover the yard with asphalt. 8) What is the most important role of photosynthetic organisms in an ecosystem? A) converting inorganic compounds into organic compounds B) absorbing solar radiation C) producing organic detritus for decomposers D) dissipating heat E) recycling energy from other tropic levels 9) Ecosystems are A) processors of energy and transformers of matter. B) processors of matter and transformers of energy. C) processors of matter and energy. D) transformers of matter but not of energy. E) neither transformers or processors of matter nor energy. 10) Which of the following is an example of an ecosystem? A) All of the brook trout in a 500 hectare2 river drainage system. B) The plants, animals, and decomposers that inhabit an alpine meadow.
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This note was uploaded on 03/13/2011 for the course BIO 1B taught by Professor Carlson,mischel,power during the Fall '07 term at University of California, Berkeley.

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