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32 Cards in this Set
- Front
- Back
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Ecology
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the study of interactions of organisms with one another and with their physical surroundings.
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Organisms
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an individual
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Species
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a group of organisms that share similar characteristics and can interbreed with one another.
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Population
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group of 1 species
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Community
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interacting populations (more then 1 species)
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Ecosystem
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: communities and their physical surroundings
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Biosphere
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where life can live
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Niche
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place where organisms live and its role in community
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Habitat
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– place where organism live its life
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Biome
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a grouping of all ecosystems of a similar type (ex: Desert)
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Landscape
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a group of interaction ecosystems in a particular area
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Biotic Factor
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Living things that directly or indirectly affect the organism in its environment.
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Abiotic Factor
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Non-living physical and chemical factors which affect the ability of organism to survive and reproduce.
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Symbiosis
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a close, permanent relationship of different species
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Commensalisms
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1 Benefits, other is not harmed
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Parasitism
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1 benefits, other is harmed
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Mutualism
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Both benefit
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Producers
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organism that is able to make its own food from inorganic substance
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Consumers
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: organism that gets its energy directly or indirectly from producers
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Decomposers
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animal that feeds on tiny bits of decaying plants and animals
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Marine Zones
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Intertidal - land meets water
Neritic - shallow regions Oceanic - deep water Pelagic - open water Benthic - seafloor |
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Steady State
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when average growth rate is zero
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Carry Capactiy
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Size of population during steadt state
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Density-dependent limiting factor
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Factors that control population size and operate more stongly on large populations then small.
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Density-independent limiting factor
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Factors that control population size regardless of how large the population is
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Birth Rate
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the ratio of total live births to total populations in a specific community or area over a specific period of time.
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Death Rate
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the ratio of total deaths to total populations in a specific community or area over a specific period of time.
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Biodegradable waste
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materials that can be degraded or brokebn down by microrganisms into essential materials
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Non Biodegradable waste
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Materials that canno be broken down by natural processes
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Smog
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air pollution consisting of smoke and fog creating a haze
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Acid Rain
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Pollution in the air that combine with water vapor to form droplets of acid
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Greenhouse effect
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an increase of carbon dioxide and other gasses in the atmosphere that absorb
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