Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 46, Problem 4SQ
Summary Introduction
Concept introduction: An ecosystem is an arrangement of organisms and their physical environment, all interacting through a one way flow of energy with respect to the cycling of nutrients. It is an open flow system that requires ongoing inputs of energy and nutrients. In an ecosystem, the trophic level represents the position of an organism in a food chain. The flow of energy through an ecosystem begins with the primary production.
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The amount of energy available to heterotrophs is ________.
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net primary productivity (NPP)
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always equal
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Chapter 46 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 46 - In most ecosystems, the primary producers use...Ch. 46 - Organisms at the lowest trophic level in a...Ch. 46 - Prob. 3SQCh. 46 - Prob. 4SQCh. 46 - Efficiency of energy transfers in aquatic...Ch. 46 - Prob. 6SQCh. 46 - Earths largest carbon reservoir is _______. a. the...Ch. 46 - Carbon is released into the atmosphere by _____ a....Ch. 46 - Prob. 1DAACh. 46 - Prob. 2DAA
Ch. 46 - Changes in the Air To assess the impact of human...Ch. 46 - Changes in the Air To assess the impact of human...Ch. 46 - Prob. 9SQCh. 46 - The _____ cycle is a sedimentary cycle. a....Ch. 46 - Earths largest phosphorus reservoir is _______. a....Ch. 46 - Prob. 12SQCh. 46 - Nitrogen fixation converts _______ to _______. a....Ch. 46 - Prob. 14SQCh. 46 - Prob. 15SQCh. 46 - Marguerite plants a vegetable garden in Maine....Ch. 46 - Where does your drinking water come from? An...Ch. 46 - Scientists study bubbles trapped in ancient...Ch. 46 - Nitrogen-fixing bacteria live throughout the...Ch. 46 - As noted in Section 46.7, mycorrhizal fungi help...
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- An example of a sustainable agriculture practice is _______. a. widespread use of herbicides and pesticides b. using routine antibiotics for all feed animals c. large-scale irrigation d. composting all plant residues e. feeding livestock in feedlotsarrow_forwardThe position of an organism along a food chain is known as its ________. a. locus b. location c. trophic level d. microcosmarrow_forwardThe primary producers in an ocean grazing food web are usually ________. a. plants b. animals c. fungi d. phytoplanktonarrow_forward
- 1. The use of land is determined by physical and human factors. A. True B. False 2. Waste that is not biodegradable and cannot properly be recycled is filling our oceans and landfills, thus killing wildlife animals. A. True B. Falsearrow_forwardDecomposing organic matter in soil is called______ . a. clay d. silt b. humus e. sand c. topsoil f. leachingarrow_forwardThe movement of mineral nutrients through organisms and their environment is called a ________ cycle. a. biological b. bioaccumulation c. biogeochemical d. biochemicalarrow_forward
- Based on temperature requirements which of the following is not correct?* a. Coconut and mango are tropical crops b. Asian rice and wheat are cool season crops c. Citrus species are sub-tropical crops d. Cruciferous vegetables are cool season cropsarrow_forwardMost of the food produced in industrial agriculture is A. eaten by the workers B. sold for a profit C. eaten by the farmers D. unable to be eatenarrow_forwardb. carnivores c. heterotrophs d. autotrophs 6. Any organism that must obtain its food from a source outside itself is a(n) a. autotroph. b. heterotroph. C. parasite. d. saprophyte. 8. Which is a consumer? MO) b. grassarrow_forward
- 10 topic: light and dark bottle method The dark bottle represents the ______. a. net primary productivity c. respiration b. gross primary productivity d. phytoplanktonarrow_forwardThe total amount of energy taken up by producers through photosynthesis in an ecosystem is known as...? Group of answer choices a. evaporation b. net primary production c. standing crop d. nutrient limitation e. gross primary productionarrow_forwardThe mussels that live at the NW Eifuku volcano are examples of _______. a. chemoautotrophs b. photoautotrophs c. apex predators d. primary consumersarrow_forward
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