1. 2. 3. Marine fish cells are hypotonic compared to their seawater environment; their cells lose water by osmosis and gain solutes. If you add heterotrophic respiration and autotrophic respiration together and then subtract that value from gross primary productivity, then you have a more refined estimate of ecosystem carbon storage than NEE. Differential heating due to the earth's tilt generates the global wind AND oceanic circulation patterns

1. 2. 3. Marine fish cells are hypotonic compared to their seawater environment; their cells lose water by osmosis and gain solutes. If you add heterotrophic respiration and autotrophic respiration together and then subtract that value from gross primary productivity, then you have a more refined estimate of ecosystem carbon storage than NEE. Differential heating due to the earth's tilt generates the global wind AND oceanic circulation patterns

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter46: Ecosystems

Section: Chapter Questions

Problem 5SQ: Efficiency of energy transfers in aquatic ecosystem is typically higher than in land ecosystems...

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Figure 46.17 Which of the following statements about the nitrogen cycle is false? Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+). Denitrification by bacteria converts nitrates (NO3-) to nitrogen gas (N2). Nitrification by bacteria converts nitrates (NO3) to nitrites (NO2-). Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.
Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates (NO3 ) into nitrogen gas (N2). Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+).
All the following are renewable energy sources except ______. a. hydropower b. wind c. natural gas d. solar energy
The movement of matter is _______________ in ecosystems, and the movement of energy is _________________. (a) linear; linear (b) linear; cyclic (c) cyclic; cyclic (d) cyclic; linear (e) cyclic; linear or cyclic
The process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called _________. a. dead zoning b. eutrophication c. retrophication d. depletion
Decomposers are associated with which class of food web? grazing detrital inverted aquatic
Figure 46.10 Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped. Energy pyramids, however, are always upright. Why?
Decomposers are associated with which class of food web? a. grazing b. detrital c. inverted d. aquatic
As CO2 concentrations increase in the atmosphere, biologists continue to explore the role of respiration from plants as a small but potentially important contribution beyond fossil fuel combustion. The data in the Table were collected from the leaf of a sagebrush plant from a semiarid ecosystem in Wyoming, enclosed in a chamber that measures the rate of CO2 exchange. The respiration rate is the amount of CO2 in micromoles lost by the leaf per square meter per second, which results in the negative numbers. The temperature values are from the leaves as they are heated or cooled during the measurements. Observation Temperature (C) Respiration Rate (mol/m2/s) 1 25 -2.0 2 30 -2.7 3 35 -4.1 4 40 -5.8 5 20 -1.3 6 15 -1.0 7 10 -0.7 Cengage Learning 2017 What describes the relationship between temperature and respiration, a line or a curve? Does the Q10 that you calculated in 2 suggest a line or a curve? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.
The major source of nutrients in the headwaters of a small stream is form: a. dead leaves and other organic matter from adjacent land. b. photosynthesis by phytoplankton. c. photosynthesis by floating aquatic plants. d. the activity of chemoautotrophic bacteria. e. minerals from the underlying bedrock.
Figure 44.10 How might turnover in tropical lakes differ from turnover in lakes that exist in temperate regions?
What term describes the use of mathematical equations in the modeling of linear aspects of ecosystems? analytical modeling simulation modeling conceptual modeling individual-based modeling