Trophic level transfer efficiency

Construct a biomass pyramid for the following hypothetical scenario. Be sure to include all four trophic levels in the pyramid, and provide the total biomass of living things found at each level. Be sure to include units, and label each trophic level. The shape of your pyramid should be based on the biomass of each trophic level. Levels with more biomass should be drawn wider, and levels with less biomass should be drawn thinner. Note that your biomass pyramid may or may not be a true pyramid. Scenario: Hickory Run Nature Reserve is a 150-acre conservation area filled with plants and animals native to the Mid-Atlantic region of the United States. A baseline study was done to determine the total biomass of producers and consumers living on the reserve. Baseline data will be compared to data collected in future years to determine trends in species accumulation or loss. This comparison is important because the region surrounding the reserve is experiencing a high rate of human development…

Can you please help answer the question?

Students from Westbury High School participated in a study of the Willow Waterhole Pond. After safely taking samples of some small fish, a fish-eating hawk, some pond water, some zooplankton, and a fish that preys on the small fish, they determined the average concentration of compound "Z" in each sample. The table below summarizes their data.   Build a food chain that illustrates the correct trophic order in the pond. Include the concentrations of compound "Z" for each part of the chain. Describe one natural process that would cause compound "Z" to contaminate the pond's water. (Please write in complete sentences.)