Lecture%204%20answers

Lecture%204%20answers - Answers to study questions Lecture...

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Answers to study questions Lecture 4, Interactions with the abiotic environment 1. Shown below are three graphs that relate the ‘intensity’ of some abiotic environmental condition to the performance of an organism experiencing that environmental condition. For each of the three graphs, give an example of an abiotic environmental condition that might produce such a graph. Explain your answers. A) Answer: This sort of function is typical for any compound (or process) that is not needed by the organism (performance is maximal when the intensity of the condition is zero), but that becomes toxic when present in high concentrations. Examples include organic or inorganic toxins (e.g., pesticides, chemical pollutants) or ionizing radiation. B) Answer: This sort of function is typical for any condition that is optimal at intermediate values, but for which organismal performance declines at very low intensities or very high intensities. Examples include temperature, pH, and some macronutrients or major resources that can become injurious or
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This note was uploaded on 04/22/2011 for the course BIS 2B taught by Professor Strong during the Winter '08 term at UC Davis.

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Lecture%204%20answers - Answers to study questions Lecture...

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