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