Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 30, Problem 3MC
Summary Introduction
Introduction:
Aquatic ecosystems are an essential part of life out of the four requirements that helps in providing appropriate temperature and abundant water. In aquatic regions as the depth increases, the sunlight penetration decreases.
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Thermal stratification in a lake
a. is not modified by fall and spring overturn.
b. leads to higher oxygen in deep versus surface waters.
c. leads to higher oxygen in surface versus deep waters.
d. is reduced when ice forms on the surface of the lake.
Young lakes are often clear and with little plant life. Such lakes arecalleda. oligotrophic.b. eutrophic.c. lotic.d. lentic.e. pelagic.
Eutrophication in water bodies can lead to the formation of dead zones due to a depletion of
a.
oxygen.
b.
carbon.
c.
nitrogen.
d.
decomposers.
e.
phosphorus.
Chapter 30 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 30.1 - Prob. 1CYLCh. 30.1 - Prob. 2CYLCh. 30.1 - Prob. 3CYLCh. 30.2 - Prob. 1TCCh. 30.2 - Prob. 2TCCh. 30.2 - Prob. 1CSCCh. 30.2 - explain how Earths curvature, tilt on its axis,...Ch. 30.2 - Prob. 2CYLCh. 30.2 - Prob. 3CYLCh. 30.3 - Prob. 1TC
Ch. 30.3 - Prob. 1CSCCh. 30.3 - Prob. 2TCCh. 30.3 - describe the principal terrestrial biomes and...Ch. 30.3 - describe human impacts on terrestrial biomes?Ch. 30.4 - Prob. 1HYEWCh. 30.4 - Why do estuaries and other coastal ecosystems have...Ch. 30.4 - Prob. 1CYLCh. 30.4 - Prob. 2CYLCh. 30.4 - describe some effects humans have on aquatic...Ch. 30.4 - Prob. 1CTCh. 30 - Prob. 1MCCh. 30 - The biome that is mostly covered by grass and...Ch. 30 - Prob. 3MCCh. 30 - Prob. 4MCCh. 30 - Prob. 5MCCh. 30 - Prob. 1FIBCh. 30 - Prob. 2FIBCh. 30 - Prob. 3FIBCh. 30 - Prob. 4FIBCh. 30 - Prob. 5FIBCh. 30 - Explain how air currents contribute to the...Ch. 30 - Prob. 2RQCh. 30 - Prob. 3RQCh. 30 - Prob. 4RQCh. 30 - List some adaptations of desert cactus plants and...Ch. 30 - Prob. 6RQCh. 30 - Prob. 7RQCh. 30 - Prob. 8RQCh. 30 - What environmental factor best explains why the...Ch. 30 - Prob. 10RQCh. 30 - Prob. 11RQCh. 30 - Prob. 12RQCh. 30 - Prob. 13RQCh. 30 - Prob. 14RQCh. 30 - Prob. 1ACCh. 30 - Prob. 2AC
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- Aquatic biomes are distinguished primarily by a. their temperatures. b. the speed of their currents. c. their salinity. d. their pH.arrow_forwardA. The weathering and erosion in the area happens deep under the soil so the area looks unaffected B. Less sediment flows into the area because the vegetation soaks up all the water and makes its drier. C .the high amount of vegetation in the area causes more roots to hold the soil in place against weathering. D. The high amount of vegetation in the area causes an increase in oxygen causing stronger more stable soil.arrow_forwardLakes and ponds that exhibit high levels of eutrophication typically are affected by too much A. Dissolved oxygen B. Nitrogen C. Carbon dioxide D. Sulfurarrow_forward
- Oligotrophic lakes have a. low oxygen, and high nutrient availability. b. high oxygen, and high nutrient availability. c. high oxygen, and low nutrient availability. d. low oxygen, and low nutrient availability.arrow_forwardPlace the following components of the hydrologic cycle in the correct order by numbering them from 1 to 5, beginning with precipitation. a. precipitation b. uptake by plants c. transpiration d. water percolation into soil e. condensationarrow_forwardWhich of the statements about groundwater is NOT accurate? a. In the United States, groundwater provides 50% of the population with drinking water. b. Groundwaters are being depleted faster than they can be recharged. c. Groundwaters are becoming increasingly polluted. d. Removal of pollutants from groundwaters is easily achieved.arrow_forward
- Allof the following statements concerning oligotrophic lakes are true, except:a.warm temperatures.b.low nutrients.c.high oxygen content.d.deep and clear waters.e.low biological productivity.arrow_forwardWhich of the following biomes would have high levels of both light and nutrients available in brackish (mixed salt and fresh) water? Group of answer choices a. estuary b. deciduous forest c. coral reef d. woodland streamarrow_forwardAn oligotrophic ecosystem would be most likely to exist in a/ana. ocean b. high mountain lake c. tropical pond d. polluted riverarrow_forward
- This biome gets little rainfall and has a high rate of evaporation. a. Tropical forest b. Temperate grassland c. Temperate deciduous forest d. Desertarrow_forwardWhich of the following statements about biomes is false? a. Chaparral is dominated by shrubs. b. Savannas and temperate grasslands are dominated by grasses. c. Boreal forests are dominated by deciduous trees. d. Lichens are common in the arctic tundra.arrow_forwardRiparian”refers to plant communities occurring:a.in the tropics.b.at high altitudes.c.along the edges of deserts.d.in permanently flooded areas.e. in transitions between riverbanks and uplandareas.arrow_forward
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