Ecology

environmental science= the study of interactions among organisms and their environment. Biosphere= the portion of populace that supports life. Abiotic factors= non-living move of the environment Biotic factors= living part of the environment Levels of Organization in Ecology: 1. organism ( nonpareil thing) 2. population (many things of the kindred species) 3. communities (a mix of different species) 4. ecosystem (living things and the environment) 5. biosphere (contains entirely ecosystems) habitat= place where an organism lives niche= the intent and position a species has in its environment symbiosis= living to totalher; a descent between two organisms 1. commensalism= one organism benefits, the otherwise(a) is neither benefitted or harmed. 2. mutualism= twain organisms benefit 3. parasitism= one organism benefits, the other is harmed *energy take to the woods= 10% is passed on, 90% is wasted autotrophs= producers; fuck onward provender; plants heterotrophs= consumers; cannot make their accept viands Three types of heterotrophs 1. herbivores= only sap autotrophs (plants) 2. carnivores= eat other heterotrophs (meat) 3. omnivores= eat both autotrophs and heterotrophs scavengers= eat dead parry; vultures, buzzards *decomposer= rift down the mixed compounds of dead and decaying plants and animals into things that can be absent and use by organisms. food chain sun->grass->grasshopper->snake->eagle **arrow shows direction of prevail-up-and-go work** algae->fish->heron->alligator trophic level= distributively step in a food chain

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