Part 1: Make a food web with these animals. Part 2: prairie dogs are consider a keystone speciesism to the number of organisms that depend on it. Use your model to make protections about how the flow of energy in the ecosystem would be disrupted if the prairie dogs became extinct. Create a list of these disruptions.

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.