organisms
An organism that can make its own food
What is producer
The advance of desert-like conditions in an area once fertile
what is desertification
a series of events in which one organism eats another and obtains energy
what is food chain
An organism that obtains energy by feeding on other organisms
rain, snow, sleet, or hail
what is precipitation
a web consisting of many overlapping food chains in ecosystem
what is food web
Consumers that eat both plants and animals
What is omnivore
The process by which a gas changes to a liquid
what is condensation
Consumers that eat only animals
what is a carnivore
The process by which molecules of liquid water absorb energy and change to a gas
what is evaporation
A carnivore that feeds on the bodies of dead organisms
The process of changing free nitrogen into a usable form of nitrogen
what is nitrogen fixation
A diagram that shoes the amount of energy that moves from one feeding level to another in a food web
what is energy pyramid