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Lernen beginnen

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Frage		Antworten
succession Lernen beginnen		changes in an ecosystem as other individuals die out and are replaced
primary succession Lernen beginnen		occurs when no soil exists
pioneer species Lernen beginnen		first species to inhabit
secondary succession Lernen beginnen		happens when primary succession has been interupted by human or natural occurances
Niche Lernen beginnen		organisms role in its einviroment
habitat Lernen beginnen		organisms einviroment
predatation Lernen beginnen		eating organisms, eating the prey
symbiosis Lernen beginnen		living together
mutualism Lernen beginnen		both species benefit
commensalism Lernen beginnen		one species benefits the other is neither harmed or helped
parasitism Lernen beginnen		one species benefits but the other is harmed
two types of population growth Lernen beginnen		exponential logistic
why would population wroth slow down? Lernen beginnen		runing out of resources
carrying capacity Lernen beginnen		number of individuals the einviroment can support
limiting factors Lernen beginnen		conditions that cause growth to slow down
density dependent Lernen beginnen		these factors only affect the population when the population is large
density independent Lernen beginnen		any factor that affects the whole population the same no mater the population size
autotroph Lernen beginnen		organisms that use energy from the sun or energy stored in chemical compuonds to manufactor their own nutrients
ecosystem Lernen beginnen		interactions among population n a community: the communities physical surroundings, or abiotic factors
heterotroph Lernen beginnen		organisms that cannot make their own food and must feed on other organisms for energy and nutrients
biomag Lernen beginnen		DDT
Deforestation Lernen beginnen		cutting down trees
biodiversity Lernen beginnen		variety of life in an area. usually measured as the number of species that live in an area
biology Lernen beginnen		study of life
levels of organiaztion in biology Lernen beginnen		individual, popuation, community, ecosystem

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