Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
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
Biology
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_forwardThe rocky shore shows the greatest level of biodiversity: a. Above the high tide line b. Between the high-tide and low-tide lines c. In the splash zone d. In brackish water e. In rock pools above the mid-tide linearrow_forwardA key feature of estuaries is: a. low light conditions and high productivity b. salt water and fresh water c. frequent algal blooms d. little or no vegetationarrow_forward
- Lakes and ponds that exhibit high levels of eutrophication typically are affected by too much A. Dissolved oxygen B. Nitrogen C. Carbon dioxide D. Sulfurarrow_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
- 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_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
- 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_forwardThis 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 biomes is characterized by short growing seasons?a. desertsb. tropical wet forestsc. Arctic tundrad. savannaarrow_forward
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