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a group of organisms, all of the same species, which interbreed and live in the same area at the same time
made up of interacting populations in a biological community and the community's abioic factors
The relationship in which there is a close and permanent association between organisms of different species
a relationship in which one species benefits and the other neither benefits nor is harmed from it, +,0
An organism that uses light energy or energy stored in chemical compounds. also called the producer
break down complex compounds of dead and decaying plants an animals into simpler substances
a simple model that scientists use to show how matter and energy move through an ecosystem.
the study of plants and animals, including where they grow and live, what they eat, or what eats them is called__
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