MATCHING LISTQuestion 20Match each term to its corresponding example.eutrophicationa.lack of oxygen on the ocean floor at themouth of the Mississippi River due toseasonal algal bloomsdead zoneb.condition of low oxygen in the seawaterat the mouth of the Mississippi River re-sulting from seasonal agricultural runoffanoxiaC.seasonal overgrowth of algae at thehypoxiamouth of the Mississippi River due toagricultural runoff upstreamd.seasonal loss of fish at the mouth of theMississippi River due to migration awayfrom hypoxic conditions created byeutrophicationAll Chaned6...

Given: Eutrophication-Eutrophication is the phenomena of increase in plant nutrients like…

Answered: Question 20 Match each term to its…

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter17: Communities And Ecosystems

Section: Chapter Questions

Problem 9SQ

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Where does your drinking water come from? An aquifer or an aboveground reservoir? What area is included within your watershed? Visit the Science in Your Watershed site at http://water.usgs.gov/wsc to find out.
The _____ cycle is a sedimentary cycle. a. phosphorus b. carbon c. nitrogen d. water
Figure 20.12 Which of the following statements about the nitrogen cycle is false? a. Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+) . b. Denitrification by bacteria converts nitrates (NO3) to nitrogen gas (N2) . c. Nitrification by bacteria converts nitrates (NO3) to nitrites (NO2) . d. Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.
Biome distribution depends on ______. a. climate b. elevation c. soils d. all of the above
Emergent vegetation grows in the __________ zone of freshwater lakes, (a) littoral (b) limnetic (c) profundal (d) neritic (e) intertidal
The _______________ is open ocean from the shoreline to a depth of 200 m. (a) benthic environment (b) intertidal zone (c) neritic province (d) oceanic province (e) aphotic region
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
Two arctic marine mammals that live in the same waters differ in the level of pollutants in their bodies. Bowhead whales have a lower pollutant load than ringed seals. What are some factors that might explain this difference?
Figure 20.28 In which of the following regions would you expect to find photosynthetic organisms? a. The aphotic zone, the neritic zone, the oceanic zone, and the benthic realm. b. The photic zone, the intertidal zone, the neritic zone, and the oceanic zone. c. The photic zone, the abyssal zone, the neritic zone, and the oceanic zone. d. The pelagic realm, the aphotic zone, the neritic zone, and the oceanic zone.
A key feature of estuaries is: low light conditions and high productivity salt water and fresh water frequent algal blooms little or no vegetation
Changes in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. The industrial revolution occurred around 1800. What was the trend in carbon dioxide level in the 800 years prior to this event? What about in the 175 years after it?
Changes in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. 4. Was the rise in the carbon dioxide level between 1800 and 1975 larger or smaller than the rise between 1980 and 2013?

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