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1) What is a bioindicator? What ecological and biological aspects make lichens good indicators of poor air quality? In the study by Cameron et al. (2007) what were the pros and cons of using lichens to access air quality? How might these issues be addressed in future research projects?
2) How do marsh lands function as source or sinks for carbon dioxide? Discuss how exchange rates differ seasonally. How might this information be used to formulate regulation of regional and/or global carbon dioxide emissions?
3) Discuss the role of bioindicators in accessing water quality. How might the type of water feature (ie marsh, saltwater estuary, lake, pond, etc.) influence the selection of a bioindicator? Which species, or group of species, might be best suited as aquatic bioindicators? Why? Discuss the rational for developing water quality criteria for specific organisms, ie frogs, would these organisms be useful in tracking eutrophication? Why/why not?
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List two functions of cilia in protists and to relate one or bothof these functions to the ciliated cells of multi-cellularorganisms.
Suppose that the proton motive force calculated for a bacterial cell is -187 mV. If the change in pH at 25 degrees Celsius is +0.1 (2.3RT/F or Z=59), Determine the membrane potential?
express the role of double helix in complimentary base pairing in DNA replication.
What issues need to be considered when planning an information systems project to increase data security?
Why are algae important in nature. Joan and Alex Smith have five daughters who are quite dissimilar in appearance and talents. Examine why this occurs based on the 2 events in meiosis that enhance genetic diversity.
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What is your understanding of Metabolism, Catabolism & Anabolism Relate to the interest of environmenmtal scientist in plastic waste(think about recycling in particular)
Cyanobacteria grow prolifically in streams and lakes with low oxygen levels and high nutrient concentrations. How may the presence or absence of cyanobacteria be used as an index of pollution in lakes.
A scientist randomly separated a group of 100 lab rats into two groups of 50. One group was fed regular rat chow while the other was fed the same quantity of rat chow with added ddt. Both groups were housed in the same room with the same environmenta..
As the polar ice shirinks with rising global temperatures, brown bears are expanding their range into the historical distribution of their close relative, the polar bear. Could this shift be explained by foraging strategy? If so, how?
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