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Details Title: Living Things Description: terms Total Flash Cards: 28 Created: 09/20/2004 15:30:46	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term ecology Definition the study of the interactions among organisms and their environment Term abiotic factor Definition nonling parts of the environment Term Water Definition is needed by all organisms for cell and life processes Term light and temperature Definition determine where plants and animals can live Term air Definition gases such as oxygen, nitrogen, and carbon dioxide are needed by species Term soil Definition types determine what plants and animals can live in an area Term biotic factor Definition living or once-living parts of the environment Term population Definition all members of one species living together Term communities Definition groups of populations that interact with each other in a given area Term ecosystem Definition the biotic community and its abiotic factors Term biomes Definition large area containing several ecosystems Term biosphere Definition the top layer of the Earth's crust, all water, and the atmosphere Term size Definition number of individuals in a population Term population density Definition number of individuals in a particular area Term population spacing Definition how organisms are arranged in an area Term limiting factor Definition a biotic or abiotic factor that restricts the size of a population Term carrying capacity Definition the maximum population size that can live in an environment over time Term biotic potential Definition the size a population could reach if no limiting factors stopped its growth Term symbiosis Definition close interaction between species Term mutualism Definition when both species benefit from the relationship Term commensalism Definition a helpful relationship to one species but has no effect on the other Term parasitism Definition when one species is harmed and the other benefits Term predation Definition occurs when one species hunts, kills and eat another Term habitat Definition where an organism lives Term niche Definition an organism's function in its ecosystem Term energy Definition moves through a community as producers and consumers interact Term food chain Definition how food energy moves from one organism to another Term food web Definition overlapping food chains to better show the way energy moves through an ecosystem