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29 Cards in this Set
- Front
- Back
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A living thing
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Organism
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An environment that provides the things the organism needs to live, grow, and reproduce
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Habitat
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Living parts of a habitat
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Biotic Factors
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Nonliving parts of a habitat like water, oxygen, soil, and temperature
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Abiotic Factors
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The process by which plants make their own food from carbon dioxide, water, and sunlight
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photosynthesis
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a group of organisms that are physically similar
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species
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all the members of one species in a particular area
Ex. all the bullfrogs in a pond |
population
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all the different populations that live together in an area
Ex. The bull frogs, fish, and turtles in a pond |
Community
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The community of organisms that live in a particular area along with the nonliving surroundings
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Ecosystem
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the study of how living things interact with each other and the environment
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ecology
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organism, population, community, and ecosystem
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Levels of ecological organization
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the number of births in a population in a certain amount of time
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birth rate
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the number of deaths in a population in a certain amount of time
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death rate
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When organisms move into a population
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Immigration
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when organisms move out or exit a population
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emmigration
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an environmental factor that causes a population to decrease
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limiting factor
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the largest population that an area can supposrt
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carrying capacity
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the process by which characteristics that make an organism better suited to its environment become more common in a population
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natural selection
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behaviors or physical characteristics that allow organisms to live successfully in their environments
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adaptation
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the role of an organism in its habitat
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niche
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The struggle between organisms to survive as they attemp to use the same limited resource
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competition
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an interaction in which one organism kills another for food
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predation
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the organism that kills another for food
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predator
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the organism that gets killed for food
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prey
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a close relationship between 2 species that benefits at least one species
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symbiosis
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a relationship in which both species benefit
ex. a flower and a bee- the flower gets pollinated while the bee gets nectar |
mutualism
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a relationship in which one species benefits and the other neither benefits or is harmed
ex. a clown fish and a sea anemone- the fish is protected |
commensalism
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a relationship in which one species benefits and the other his harmed
ex. a tick and a dog |
parasitism
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the organism that a parasite lives on or in
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host
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