This is the key vocab from the Ecology Unit
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| acid rain | rain with an acidic Ph caused by burning fossil fuels...destroys life in lakes/rivers
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| autotroph | self-feeder; any organism that carries out photosynthesis...a producer
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| bacteria | a decomposer that helps to break down dead material and recycle it
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| biodiversity | having a wide variety of organisms living in an ecosystem. Biodiversity builds the stability of an ecosystem.
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| carnivore | eats meat
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| carrying capacity | the largest number of organisms in a population that an environment can support
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| competition | fight to obtain food, shelter and mates
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| consumer | an organism that must eat another organism
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| decomposer | an organism (bacteria & fungi) that break down dead material and recycle it.
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| deforestation | the cutting down of trees to make room for buildings or grazing land.
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| ecology | the study of the interaction between organisms and their environment
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| ecosystem | all the organisms that live in an environment with their non-living environment
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| energy pyramid | the amount of enery available decreases as you move up the food chain.
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| extinction | when all organisms of a particular species are dead
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| food web | all the possible interactions among the various organisms in an ecosystem (who eats who)
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| fossil fuels | coal, oil and gas...non-renewable resources that cause damage to the environment when burned
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| fungi | help the ecosystem by working as decomposers
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| global warming | increase in earth's temperature as a result of an increase in carbon dioxide in the atmosphere
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| herbivore | an organism that eats plants
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| heterotroph | an organisms that consumes another organism to obtain energy
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| industrialization | the use of factories, etc. to increase human comfort and convenience
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| limiting factors | the factors that prevent a population from growing out of control (space, food, predators, etc.)
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| ozone layer | the layer of 03 in the atmosphere that protects Earth from ultraviolet rays
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| parasite/host | a symbiotic relationship where the parasite hurts the host (lice, tick, etc.)
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| pollution | placing harmful materials into the biosphere
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| population growth | the general pattern of growth of an organism. they start by increasing quickly, but then level off at the carrying capacity.
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| predator/prey | relationship between organisms where one eats the other
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| producer | a plant; something that uses photosynthesis to make its own food; autotroph
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| recycle | to break down used material into something that is usable again.
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| scavenger | something that eats dead organisms
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| climax community | The most stable community that a climate can support. It is the most biodiverse and will remain unless acted upon by weather or man.
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| invasive species | Species living in an area where they did not originate. They have no predators and therefore outcompete the native species reducing biodiversity.
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