Sample Assessments Ecclogy revised (Ccmpetibilit Model Word Layout References Ma

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Sample Assessments Ecclogy revised (Ccmpetibilit Model Word Layout References Mailings Review View Add-ins a- ·A:-= ,11: 8-1/2 Emphasis Heading 1 1 Normal] Staang . Subtitle Tale Paragraph Styles 35 30 26 20 15 10 250 kangaroo rats +plant productivity +150 100 50 1987 1988 1989 1990 1991 1992 1993 1994 1996 August Census Fig 2. Trends in kangaroo rat population and plant productivity in Califomia. (Source: http://esrpesustanedu/publications/pubhmlphp?doc=smp&file-chapterO2H00; html) 2A. Describe the most important pattem you see in Fig. 2. B. Explain this pattern, stating clearly which is the independent variable. C. Predict which will have a greater total biomass: kangaroo rats or grass. Explain your reasoning D. Predict which year had the highest rainfall Explain your reasoning

Explanation / Answer

2A. The most important pattern of this graph is it cyclicity. Both the curves are following each other in most of the cases as they are inter related.

B. The kangaroo population may the independent variable as it is not going high while plants are more in counts.

C.area covered by the curve is more for plant production. Thus it will have more contributions towards the total biomass.

D. 1995, rainfall is essential component for growing of plants.

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