Review of EOCT content for ecology
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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| study of the interactions between living things and the environment | ecology
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| all organisms and the environments in which they live; all places on earth that supports life | biosphere
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| all the living things in an environment | biotic factors
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| all the nonliving things in an environment | abiotic factors
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| organisms of the same species in a given area | population
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| a collection of populations that interact with each other in a given area | community
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| all the biotic and abiotic factors in a given area | ecosystem
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| a collection of ecosystems sharing similar vegetation and climate | biome
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| number of organisms of the same species living in a given area | population density
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| population growth under ideal conditions | exponential
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| J-shaped curve of population growth | exponential
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| population growth when there are limiting factors | logistic
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| S-shaped curve of population growth | logistic
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| maximum size of a population that an environment can support | carrying capacity
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| when the death rate is equal to the birth rate | zero population growth
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| type of limiting factor based on the size of the population Examples- competition, overcrowding, food and water resources | density-dependent
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| type of limiting factor where the size of the population has no effect Examples- flooding or fire | density-independent
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| the role or job an organism has in the environment | niche
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| place where an organism lives | habitat
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| ecosystems on land | terrestrial
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| ecosystems in the water | aquatic
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| biome with permafrost, very cold, basically treeless, arctic fox and snowy owl | tundra
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| biome with large coniferous trees, acidic soil, black bear and wolves | taiga
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| biome with frequent rain, found near equator,temperature near 80 F toucans, monkeys, parrots | tropical rain forest
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| biome can be hot or cool, very little rainfall, camels,jackrabbit, many reptiles, cacti | desert
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| biome with uneven rainfall, many grasses and small plants, many grazing herbivores: bison, antelope | grasslands
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| biome with 4 seasons, rabbits, squirrels, birds, trees lose leaves in winter | temperate deciduous forest
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| ultimate source of energy in an ecosystem | sun
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| organisms in an ecosystem that harness the sun's energy to make food molecules | producers or autotrophs
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| organisms in an ecosystem that eat other organisms to obtain energy | consumers or heterotrophs
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| organisms that feed on dead organisms | decomposers
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| shows how energy flows in an ecosystem | food chain
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| a step or feeding level on a food chain | trophic level
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| all the possible feeding relationships in an ecosystem | food web
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| feeds on producers in a food chain | primary consumer
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| feeds on herbivores | secondary consumer
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| amount of energy passed on to each trophic level | 10%
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| energy ____________ through an ecosystem | flows
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| matter ____________ through an ecosystem | recycles
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| form carbon is found in the atmosphere | carbon dioxide
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| percentage of nitrogen in the atmosphere | 78%
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| bacteria do this to make nitrogen accessible for plants to make proteins | nitrogen fixation
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| How is carbon dioxide in the atmosphere used by plants to make sugars? | photosynthesis
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| How is carbon returned to the atmosphere in the carbon cycle? | respiration, decomposition, burning fossil fuels
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| the natural changes that take place in an ecosystem over time | succession
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| the gradual changes in an ecosystem where no life has existed before; from bare rock | primary succession
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| type of succession after a volcano | primary succession
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| organisms that first inhabit an area | pioneer organisms
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| examples of pioneer organisms | mosses and lichen
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| changes after a natural disaster or human activity partially destroys an environment | secondary succession
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| type of resource that is replaced by natural processes | renewable
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| type of resource that is only present in limited amounts | nonrenewable
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| the contamination of air, soil, or water from human activity | pollution
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| primary cause of air pollution | burning of fossil fuels to produce electricity
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| solids in the air that can have a negative effect on living things; soot | particulates
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| a combination of smoke, gases, and fog | smog
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| sulfur oxides in the atmosphere that mix with water vapor in the clouds which damages crops and harms living things in aquatic environments | acid rain
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| carbon dioxide traps heat from the sun warming the Earth | greenhouse effect
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| excess heat from the greenhouse effect causing temperatures to rise on the earth | global warming
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| ozone layer that prevents harmful UV rays from sun reaching the earth is broken down by these | CFC's Cholofluorcarbons
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| response of a plant seedling to gravity | geotropism
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| response of a plant seedling to water | hydrotropism
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| response of a plant seedling to light | phototropism
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| response of a plant seedling to touch | thigmotropism
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| This is when a toxin is added to the environment and it increases in concentration in each organism as it moves up the food chain | biomagnification
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Created by:
elaineconklin
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