BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 43, Problem 5CT
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To discuss:
According to what effect, the climate change will affect the timing of nutrient availability in temperate zone lakes.
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As global temperature rises as a result of increased atmospheric carbon dioxide, temperate zone lakes are freezinglater in the winter and defrosting earlier in spring. Howwill these changes affect the timing of nutrient availability in these lakes? What effect would you expect thischange in timing have on life in the lakes?
What is the gradient trend of the phosphorus, nitrogen, and precipitation on mountains to downhills to mountains? What is the reason of this different concentrations from different levels of the mountain?
Why is the weathering of bedrock in a New Hampshire forest responsible for such a small fraction of the nutrients available to plants?
Chapter 43 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 43 - Prob. 1SACh. 43 - Which latitude will have the most hours of...Ch. 43 - Prob. 3SACh. 43 - Prob. 4SACh. 43 - Prob. 5SACh. 43 - ____________ have a deep layer of humus-rich...Ch. 43 - Prob. 7SACh. 43 - Prob. 8SACh. 43 - Prob. 9SACh. 43 - Prob. 10SA
Ch. 43 - Chemoautotrophic bacteria and archaea are the...Ch. 43 - Prob. 12SACh. 43 - Prob. 13SACh. 43 - Unrelated species living in geographically...Ch. 43 - Prob. 15SACh. 43 - Prob. 1CTCh. 43 - Owners of off-road recreational vehicles would...Ch. 43 - Prob. 3CTCh. 43 - London, England, is at the same latitude as...Ch. 43 - Prob. 5CT
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- Which statement offers the best explanation of how deforesting hubbard brooks watershed (W2) affected the nitrogen cycle? 1. Denitrification rates increased, resulting in a decrease in the export of ammonium 2. Microbial immobilization rates increased, resulting in a decline in stream nitrogen 3. Mineralization rates increased, causing the export of ammonium to increase 4. plant uptake nitrogen stopped, resulting in an increase in the export of nitratearrow_forwardA sizable amount of the nitrogen and phosphorus that enters the Chesapeake Bay originates from farms and other faraway sources, yet it is people living near the bay, such as oystermen and crabbers, who bear many of the negative impacts. Who do you believe should be responsible for addressing the problems posed by nutrient pollution? Should policies on this issuebe developed and enforced by state governments, the federal government,both, or neither? Explain the reasons for your answer.arrow_forwardThe tiger beetle Cicindela oregona has a distribution that extends from Arizona through the temperate rain forests of Alaska. Why should the amounts of cuticular hydrocarbons vary geographically among populations of C. oregona? Describe how water loss is related to the habitats this beetle is found in. How would you predict the habitat of this beetle changes across this latitudinal range and why? Explain the relationship between water and temperature regulation in terrestrial organisms?arrow_forward
- Nutrient cycling in aquatic vs terrestrial systems differ because: a) Aquatic systems store lower proportions of carbon and nutrients in detritus than terrestrial systems b) Water flow alters how nutrients move within streams, which affects nutrient retentiveness c) both d) neitherarrow_forwardHow is phosphorus typically released from geological sources into the soil and aquatic systems? Through the weathering of phosphate-rich rocks Through atmospheric deposition Through volcanic eruptions Through biological fixation by microorganismsarrow_forwardLocal conditions, such as heavy rainfall or the removal of plants, may limit the amount of nitrogen, phosphorus, or calcium available to a particular terrestrial ecosystem, but the amount of carbon available to the ecosystem is seldom a problem. Why?arrow_forward
- Plant growth is limited by available nitrogen. Why is nitrogen fixation a limiting factor? There is very little nitrogen available after fossil fuel combustion utilizes the available nitrogen. Nitrogen must be produced by bacteria due to the inability of recycling by decomposers. There is no nitrogen in the atmosphere; it is only found in aquatic biomes. The stability of nitrogen gas makes it difficult to turn into nitrogen for living things.arrow_forwardCan the amount of available energy on a given trophic level be larger than the available energy on lower trophic levels? What does that condition mean for the shape of energy pyramids?arrow_forwardThe energy flow in the ecosystem is important to maintain an ecological balance. In this context, answer the following: (i) Explain why the flow of energy at different levels in an ecosystem is unidirectional and non-cyclic? (ii) Why is the number of trophic levels in an ecosystem limited?arrow_forward
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