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Chapter 1 Vocabulary Review
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The behavioral and physical characteristics of a species that allow them to live successfully in their environment.
Adaptation
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An interaction in which one organism kills and eats another organism
Predation
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A close relationship between two species that benefits at least one of the species.
Symbiosis
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The organism that benefits in parasitism
Parasite
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Moving into a population
Immigration
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A relationship in which both species benefit
Mutualism
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The process in which organism make their own food using water, sunlight, and carbon dioxide
Photosynthesis
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The organism that is harmed in parasitism
Host
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An approximation of a number, based on reasonable assumptions.
Estimate
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The organism that does the killing
Predator
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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.
Secondary Succession
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Living parts of an ecosystem
Biotic factors
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The series of predictable changes that occur in a community over time
Succession
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The number of births in a population in a certain amount of time.
Birth rate
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A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce.
Species
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The first species to populate the area
Pioneer species
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Moving out of a population
Emigration
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A relationship in which one species benefits and the other is unaffected.
Commensalism
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The number of individuals in a specific area
Population density
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Series of changes that occur in an area where no soil or organisms exist
Primary Succession
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The struggle between organisms to survive as they attempt to use the same limited resource.
Competition
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A relationship in which one organism benefits and the other is harmed.
Parasitism
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All the different populations living together in an area
Community
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An organism’s particular role in its habitat, or how it makes a living
Niche
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A method used to determine population size using the following formula:Total population =
(number of total individuals captured X number of originally marked ) Total number of individuals recaptured with mark
Mark and Recapture
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An environmental factor that prevents a population from increasing
Limiting factor
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The organism that is killed
Prey
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Counting every organism that you see to determine population size
Direct observation
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The process by which characteristics that make an organism better suited for their environment become more common in that species.
Natural Selection
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The place where an organism lives and that provides the things the organism needs to survive.
Habitat
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Counting signs of an organism to determine population size
Indirect observation
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Counting the number of individuals in a small area and then multiplying to find the number ina larger area
Sampling
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All living things
Organisms
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The study of how living things interact with each other and with their environment.
Ecology
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The largest population that an environment can support
Carrying capacity
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All the members of one species in a particular area
Population
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Nonliving parts of an ecosystem
Abiotic factors
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The levels of ecological organization from smallest to largest.
Organism, population, community, ecosystem
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100 meters wide X 50 meters = ??
Pretend Oyster Bed……..
There are 20 oysters per square meter, so how many oysters would be in an area this size?
The Great Oyster Sampling….
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•First find the area of the PRETEND OYSTER bed….
•100 meters X 50 meters = 5,000 meters squared
•Then multiply your SAMPLE SIZE by your AREA SIZE….
•5,000 meters squared X 20 oysters per square meter = 100,000 oysters!!