Can you think of two more ways that humans have either positively or negatively impacted a given species and its survival? what have we done that has increased that species' survival? decreased? how could we do better in the future to preserve the diversity of life on earth?

Suppose that b. madurai is commonly collected in freshwater areas near boat harbors and marinas but is haraely found in pristine waters. first, design an experiment that tests an adaptation of b. madurai to some aspect of its environment. in your design, be sure to include a question to test, a hypothesis, and a plan for how you will collect and analyze data.