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Answers Ecology Definitions Term Definition Abiotic Factor NON-LIVING environmental factors such as wind, heat, light and soil Biodiversity The VARIETY of different species in an area Biotic Factor LIVING ORGANISMS that interact with other living organisms in an ecosystem (e.g., organisms compete for resources, predators and prey) Biogeography Study of the distribution of plants and animals Carnivore Organism that eats MEAT Community All the populations of DIFFERENT organisms in an area Food Chain Simply, straight-line chain that shows the flow of energy from the primary producers to the top predator Food Web All food chains connected to show all relationships between organisms Herbivore Organism that eats PLANTS Inorganic Substance Substances that DO NOT contain a combination of carbon AND hydrogen Omnivore Organism that consumes both plants AND animals Organic Substance Substances that ALWAYS contain carbon AND hydrogen Population All the species of ONE organism in an area Primary Consumer Organism that cannot make its own food; rather it consumes the Producer. Producer Organism that is capable of making its own energy (e.g., tree, grass) Secondary Consumer Organisms that rely on and typically consume the Primary Producers as an energy source Grade 9 Academic Science – Unit 1 Sustainable Ecosystems Ecology Definitions – Test Support Term Abiotic Factor Biodiversity Biotic Factor Biogeography Carnivore Community Food Chain Food Web Herbivore Inorganic Substance Omnivore Organic Substance Population Primary Consumer Producer Secondary Consumer Definition Grade 9 Academic Science – Unit 1 Sustainable Ecosystems Definitions Abiotic Factor NON-LIVING environmental factors such as wind, heat, light and soil Biotic Factor LIVING ORGANISMS that interact with other living organisms in an ecosystem (e.g., organisms compete for resources, predators and prey) Habitat Environmental area that is inhabited by a particular species Niche The relational position of a species or population in its ecosystem to each other (e.g., interactions, what happens) Organism a living thing that has the ability to act or function independently (e.g., an individual, one) Species Group of organisms whose members can interbreed Population All the species of ONE organism in an area Community All the populations of DIFFERENT organisms in an area Biodiversity The VARIETY of different species in an area