more than one individual or population in an ecosystem that relies upon the same limited resources

factors that are living or produced by living things

the number of different species of plants and animals in an area

when an organism depends on a factor for survival

a system comprising all the biotic and abiotic factors in an area and all the interactions among them

something that is needed by organisms and is not infinite in its abundance in the environment; if it is exhausted, then the organisms that need it cannot survive

a self-contained living thing

a group of interacting individuals of the same species located in the same area

an organism that gets its energy by feeding on producers in the food chain

a substance required by an organism to thrive

an animal that eats other animals that eat plants

a group of organisms with similar characteristics that are able to interbreed or exchange genetic material

Which one is NOT a biotic factor?

Which is NOT a abiotic factor?