A population of 40 killer whales lives in a bay that measures 2000 square miles. What is the population density of killer whales?

Match each organ or function with its body system. produces urine large intestine ureters mouth filters blood absorbs nutrients from food

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Building glycogen from glucose molecules is an example of what