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Chapter 9: Lessons 1 and 2

Across
Series of events in which one organism eats another and obtains energy
Shows movement of energy from one feeding level to another in a food web.
The process of changing free nitrogen into a more usable form
Gas to liquid
Breaks down biotic wastes and dead organisms
Eats meat only
Obtains energy by feeding on other organisms
Down
The advance of desert like conditions in a once fertile area
Consists of overlapping food chains
Water that falls from the sky in the form of rain, snow, etc.
Eats plants only
Eats plants and meat
Can produce its own food
Eats dead things
Liquid to gas