1) The study of relationships between living organisms, including humans, and their physical environment a) organism b) Ecology c) Population d) Biome e) biosphere f) community 2) What is the order of levels of organization in the study of ecology. a) organism, biome, population, biosphere, community, ecosystem b) organism, population, community, ecosystem, biome, biosphere c) biosphere, organism, ecosystem, biome, population 3) Groups of populations comprised of many species that live together in a defined area. a) species b) ecosystem c) biome d) community e) biome f) population 4) a combination of communities and the physical (nonliving) environment a) ecosystem b) population c) biome d) biosphere e) abiotic f) species 5) a group of individual organisms similar to one another that can create offspring a) population b) biome c) species d) ecosystem e) organism f) biosphere 6) Interaction when 2 or more species use the same resources a) niche b) species c) predation d) competition e) prey f) adaptation 7) does the killing a) prey b) mutual c) adaptation d) predator e) commensalism f) niche 8) gets killed a) predator b) prey c) niche d) competition e) adaptations f) consumer 9) a living factor in the ecosystem a) biotic b) abiotic c) producer d) herbivore e) omnivore f) decomposer 10) a close relationship between 2 organisms that benefits at least one of the organisms a) competition b) parasitism c) niche d) symbiosis e) predator f) biodiversity 11) mutualism a) +,+ (win, win) b) +,- (win, lose) c) +, = (win, doesn't care) 12) parasitism a) +, = (win, doesn't care) b) +,- (win, lose) c) +,+ (win, win) 13) commensalism a) +,- (win, lose) b) +,+ (win, win) c) +, = (win, doesn't care) 14) abiotic a) plants, animals b) sun, air, climate c) bacteria d) protists 15) All of life's energy comes from this a) the moon b) the tides c) FPL d) sun e) primary consumers f) secondary consumers 16) talons, stinging tentacles, speed a) niche b) trophic level c) decompose d) adaptations e) decomposers f) predators 17) Producers a) plants b) animals c) humans 18) Which organism does not involve different species? a) community b) ecosystem c) biome d) niche e) population f) biosphere 19) When a person has head lice, which type of relationship is this? a) mutualism b) paristism c) predator-prey d) commensalism 20) How much energy is passed to each trophic level as one goes up the energy pyramid? a) 100% b) 1% c) 10% d) 18% e) 22% f) 78%

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