Producers $(2$ points$)$

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Consumers $(2$ points$)$

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Decomposers $(2$ points$)$

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Biomass $(2$ points$)$

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Primary productivity $(2$ points$)$

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Secondary productivity $(2$ points$)$

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Energy flow $(2$ points$)$

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Trophic efficiency $(2$ points$)$

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Food web $(2$ points$)$

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Carrying capacity $(2$ points$)$

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Steady state $(2$ points$)$

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Calibration $(2$ points$)$

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$2.$ Define model and provide examples from several areas in biology. Consider areas of biology other than those studied in the laboratory. $(3$ points$)$

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$3.$ Critique the computer model used in this lab topic. In what ways is it an appropriate model of the pond ecosystem? In what ways does it fail to model the pond adequately? $(3$ points$)$

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$4.$ Even when you adjust the starting values for components in the model, the steady$-$state values remain the same. However, if you change the energy from the Sun, new steady$-$state values will emerge. Explain. $(4$ points$)$

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$5.$ Which disturbance effects that were chosen had the greatest effect on the pond ecosystem? How are you measuring the effect? $(3$ points$)$

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