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Transcript
ECOLOGY Ecology • The study of how organisms interact with their environment • All organisms must interact with both living (Biotic) and the nonliving (Abiotic) things that surround them Ecology-Abiotic Factors • Abiotic-are non-living things that are part of the environment that affects living organisms and the ecosystems. • Examples: Soil-water-air-temperature-sunlight-wind-weatherlandforms-lightening-etc……. Ecology-Biotic Factors • Biotic- a living thing, as an animal or plant, that influences or affects an ecosystem. • Examples-producers-consumers-decomposers-plants-animals-leavesetc…. Abiotic and Biotic Factors Organism • an individual animal, plant, or single-celled life form • Only one type Population • all the inhabitants of a particular town, area, or country • the body of inhabitants of a place Community • An ecological unit composed of a group of organisms or a population of different species occupying a particular area, usually interacting with each other and their environment. Ecosystem • A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit. Supplement. An ecosystem is made up of plants, animals, microorganisms, soil, rocks, minerals, water sources and the local atmosphere interacting with one another Biomes • A major ecological community of organisms adapted to a particular climatic or environmental condition on a large geographic area in which they occur. Supplement. Biomes may be classified into: Terrestrial biomes or land biomes - ex. tundra, taiga, grasslands, savannas, deserts, tropical forests, etc. Biosphere • the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. Levels of Organization • Cells – tissues – organs – organ systems – organisms – population – community – ecosystem – biosphere