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25 Cards in this Set
- Front
- Back
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count all the numbers (ex. count all the crabs in a tide pool)
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direct observation
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observe signs of organisms (ex-count all the cone shaped nests fo the cliff swallow)
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indirect observation
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living thing. the smallest level of the ecological organization
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organism
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all members of one species in a particular area...group of disosaurs
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population
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all the different populations that live together in an area.
All the living things that interact. |
community
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the role of an organism in its habitat or how it makes its living
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niche
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ecological organization
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organism, population, community, ecosystem
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no soil and no organisms exist...new island
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primary succession
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the number individuals in a specific area
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population density
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the series of changes that occur in an area where the ecosystem has been disturbed,but where soil and organisms still exist. fire, hurricanes, tornadoes
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secondary succession
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organism that is killed and eaten by another organism
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prey
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the oranism that does the killing int he predation interaction.
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predator
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The struggles between an organism to survive as they attempt to use the same limited resources
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competition
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antnteraction in which one organism kills another for food
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predation
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a relationship in which one organism lives on or in another organism and harming it. (parasite/killer - host/killed)
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parasitism
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a relationship in which one species benefits and the other species is neither helped nor harmed - redtailed hawk and cactus
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commensalism
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a relationship in which both species benefit - bat and cactus (food and pollen carried)
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mutualism
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the close relationship betwe two species that benefits at least on of the species
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symbiosis
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the three types of symbiotic relationships
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mutualism, commemsalims, parasitism
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The first species to populaate an area
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pioneer species
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the largest population that a area can support
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carrying capasity
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the community of organism that live in a perticuler area, along with there non living surrondinngs
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ecosystem
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moving into a population
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imagration
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leaving a popultion
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emagration
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an enviromental factore that causes a population to decrease
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pg 18 limiting factore/food water space wheather
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