Describe the relationship between predator and prey in a biological community. be sure to incorporate information that you've learned in this lesson, outside research, and your lab work including: a reference and explanation of trophic cascade (5 points) research on other predator-prey relationships. (5 points) identification of the independent variable for all 3 experiments. (5 points) hypothesis for the three experiments (5 points) results of experiments and comparison of actual results with hypothesis (5 points)