Study Guide For Ecology Test

... Commensalism - One benefits, one neutral - Birds and Trees Density independent factors - Factors are increase of become more prominent when the population density increases. - Disease, predation, stress, pollution, parasites etc Density-dependent factors - Factors have their own action without regard for population density. - Weather, volcano, lightning, seasons, space, etc Ecology - The study of homes – relationships of animals, plants, and their environment. Ecosystem - An environment where the living(biotic) and non-living(abiotic) things aggect one another. - There is constant recycling of materials in an ecosystem Evaporation - One of important processes in the water cycle. - Adds water as vapor to the atmosphere Ground Water - Water in the soil or in under ground formation of porous rock is known as ground water. Habitat - The address of an organism / Geographic location - Habitats overlap - Some organisms are territorial defend habits Heterotroph - The exactly opposite of autotrophy. - Make energy by feeding something from outside Legume - A method, which used on the experiment of the Nitrogen Fixation Mimicry - Deception is important in anti-predator defense. In a defense called mimicry, a harmless species resembles a poisonous or distasteful species. Moment of Truth defense - Action by prey just before death that is unexpected by predator. - If you hit a shark on the nose it may leave you alone - Rapid turn by monkeys just before capture- with aggressive glance Mutualism - Both benefit - Flowers and insects Niche - The occupation of the organism/ Usually what they eat Nitrification - The Bacteria, in the soil take up ammonia and oxidize it into nitrites NO2- and nitrates NO3-. This process called nitrification. Nitrogen Cycle - The pathway that nitrogen follows within an ecosystem. Nitrogen Fixation - The process of conve...

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