Consumer
consumers that only eat plants
what is a herbivore
break down biotic wastes and dead organisms and return the raw material to the ecosystem
what is a decomposer
the process by which molecules of liquid water absorb energy and changes to a gas
what is evaporation
consumers that eat only animals
what is a carnivore
a series of events in which one organism eats another and obtains energy
what is a food chain
what is condensation
consumers that eat both plants and animals
what is a omnivore
consists of many overlapping food chains in an ecosystem
what is a food web
eventually the heavy drops fall to Earth as __________ - rain, snow, sleet, or hail.
what is precipitation
a carnivore that feeds on the bodies of a dead organisms
what is a scavenger
a diagram that shows the amount of energy that moves from one feeding level to another food web
what is a energy pyramid
in the _________, nitrogen moves from the air into the soil, into living things, and back into the air or soil
what is nitrogen cycle
an organism that obtains energy by feeding on other organisms
what is a consumer
the advance of desert-like conditions in an area once fertile
what is desertification