Interdependence - Organisms in an ecosystem depend on each other, directly or indirectly in order to survive., Biotic - The factors in an ecosystem that are alive, or were once alive., Abiotic - The non-living factors in an ecosystem, such as the sun, rocks, soil, water, and temperature., Food Chain - A sequence of transfers of energy in the form of food from organism to organism., Food Web - A series of food chains showing relationships such as predator-prey and competition., Biodiversity - The variety of all living things including plants, animals, and microorganisms., Energy Pyramid - A graphical model of energy flow at each trophic level in a community., Population - All organisms of the same species that live in the same area at the same time., Ecosystem - A biological community of interacting organisms and their physical environment., Competition - The demand for resources, such as food, water, and shelter, in short supply in a community., Extinct - The species which no longer exists anywhere on the Earth., Drought - A prolonged period of abnormally low rainfall leading to a shortage of water in an area., Trophic Levels - The feeding positions in a food chain or food web., Carrying Capacity - The largest number of individuals of one species that an ecosystem can support., Energy Flow - The direction and amount of energy that moves through a food chain, shown by arrows..,

Interdependence Unit 1

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