The Living World: Ecosystems Crossword

What is the chemical process by which atmospheric nitrogen is assimilated into organic compounds?
What type of lake has low productivity and low nutrient levels?
What type of lake has high nutrients and high NPP?
What is an area where freshwater and saltwater sources meet?
Which symbiotic relationship harms one organism and benefits the other?
What is a community of different species interacting with one another and with the nonliving environment of matter and energy?
what is the process by which radiation from the planet's atmosphere warms the planet's surface to a temperature above what it would be without the atmosphere?
What is a feeding level that each organism within an ecosystem is assigned to?
What is an animal which feeds in dead organic material, especially plant detritus?
Which form of competition is found between individuals of different species for the same resources in an ecosystem?