1 : How do you calculate the adjusted amount of energy that is available to organisms that are one trophic level above producers? 2 : Methylmercury biomagnifies in an ecosystem, meaning its concentration as it moves through each higher trophic level

3 : Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?

4 : Energy transfer is inefficient between trophic levels because

5 : Primary productivity is defined as