Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 59, Problem 4TY
Summary Introduction
Introduction: Accumulation of various organic and inorganic substances results in various types of changes in a particular habitat. Deposition of various substances in a habitat might prove useful or harmful for a population of that particular habitat.
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Flux of anthropogenic Phosphorous from terrestrial to aquatic ecosystems can have negative effects, such as
A. Eutrophication
B. Ocean acidification
C. Acid rain
D. Both A and C
E. A, B and C
Eutrophication isa. caused by an overabundance of nitrogen, which leads to an increasein bacteria populations.b. caused by an overabundance of nutrients, which leads to an increasein algal populations.c. the normal breakdown of algal plants following a pollution event.d. normally seen in dry, hot regions of the world.e. none of the above.
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.
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- 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_forwardBiological magnification occurs whena. pollutants increase in concentration in tissues at higher trophic levels.b. the effect of a pollutant is magnified by chemical interactions within organisms.c. an organism is placed under a dissecting scope.d. a pollutant has a greater than expected effect once ingested by an organism.arrow_forwardMarine animals and algae that live in the high intertidal zone of rocky shores are most frequently impacted by which factor? a. Desiccation b. Lower temperatures c. Absence of freshwater d. Greater competition e. All of the abovearrow_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_forwardHarmful algal blooms are occurring in an estuary near the town of Reedville . As a result , oxygen concentrations in the water of the estuary have decreased . This has killed fish and other aquatic life in the estuary . Concerned for the local food supply and habitats , residents of Reedville wish to take action . Which action will most likely result in a reduction in algal blooms ? F building smaller dams G stopping fertilizer use on residential lawns H stopping recreational use of the estuary J using less groundwaterarrow_forwardWhich of the following serves as evidence of water pollution? a an abundance of water plants in lakes b increase in temperature c indicator species d carbon sinksarrow_forward
- An organisms Niche can be defined as A. It's physical and biological requirements B. the range they can migrate C. The depth they live at D. What it feeds onarrow_forwardMost of the fresh water in the world is used fora. drinking. b. supporting industry.c. irrigating crops.d. cooking.e. bathing.arrow_forwardAnswer the following questions: 1. Agricultural runoff is a major source of pesticide and excess nutrient pollution. This is a particular problem in Indiana. Why do you think more has not been done to control these contaminants? 2. How probable do you think that it is that laws will be enacted requiring automakers to pay o environmental damage due to cars, and that automobiles will be more costly in the future as a result? 3. Some people believe that nuclear power is necessary in order to deal with the climate crisis. How do you think the dangers from nuclear waste compare to the dangers from a destabilized climate? 4. Do you think businesses should be liable for damages from hazardous waste on its site, even if the pollution came from a previous owner? Who is responsible?arrow_forward
- The preservation of ecosystems indirectly provides fresh water becausea. trees produce water as a result of photosynthesis.b. animals excrete water-based products.c. forests soak up water and release it slowly.d. ecosystems promote the growth of bacteria that release water into the environment.e. plants trap moisture with their leaves.arrow_forwardWhen the sulfur dioxide released from burning fossil fuels reacts with water vapor in clouds, sulfuric acid forms. a. Is sulfuric acid a primary or secondary pollutant? b. Is the pollution in this example point or non-point? C.Is the pollution in this example acute or chronic?arrow_forwardAllof 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_forward
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