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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Textbook Question
Chapter 46, Problem 5SQ
Efficiency of energy transfers in aquatic ecosystem is typically higher than in land ecosystems because ______.
- a. aquatic food webs include more endotherms
- b. algae do not make lignin
- c. primary production cannot occur in water
- d. all of the above
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The total amount of energy taken up by producers through photosynthesis in an ecosystem is known as...?
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a. evaporation
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c. standing crop
d. nutrient limitation
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1) A scientist finds that the gross primary productivity of the grasslands of the central United States is 55 g / m2 / year.
If the respiration loss is 33 g / m2 / year, what is the net primary productivity?
a) subtraction from gross productivity and respiration.b) The same as primary productivity.c) The value of respiration.d) The sum of gross primary productivity and respiration.
In most ecosystems, the primary producers use energy from______ to build organic compounds. a. sunlight b. heat c. breakdown of wastes and remains d. breakdown of inorganic substances in the habitat
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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