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Transcript
Organism Living thing Habitat An environment that provides the specific things a specific organism needs to live, grow and reproduce The living parts of an environment Examples: grass, trees, animals, worms, bacteria, The non living parts of an environment Examples: Sun, Water, Soil, temperature, oxygen, A group of organisms that can mate and produce offspring that can also mate and reproduce All of the members of one species living in a particular area Biotic Factor Abiotic Factor Species Population Community All of the different populations that live together Ecosystem The community of organisms that live in particular area along with their non living environment The study of how organisms interact with each other and with their environment Ecology Birth Rate the amount of births per 1,000 individuals for a given period of time Death Rate The amount of deaths per 1,000 individuals for a given period of time Immigration Moving into a population Emigration Moving out of a population Population Density The number of individuals in an area of a specific size Population Density = Number of individuals ÷ unit area Environmental factor that cause a population to stop growing or decrease in size. Examples: weather conditions, space, food and water Limiting Factor Carrying Capacity The largest population an area can support Natural Selection The process by which organisms that are best adapted to their environment are most likely to survive and reproduce The behaviors and physical characteristics that allow organisms to live successfully in their environments. The role an organism plays in its habitat Adaptation Niche Competition The struggle between organisms to survive as they attempt to use the same limited resources Predation An interaction in which one organisms kills another organism for food Predator The organism that kills Prey The organism being killed Symbiosis An relationship between to organisms in which two species live closely together and at least one of them benefits. Mutualism A symbiotic relationship in which both species benefit from the relationship Commensalism A symbiotic relationship in which one species benefits and the other is not helped or harmed Parasitism A symbiotic relationship in which one species benefits and the other is harmed Parasite The organism that benefits in a parasitic symbiotic relationship Host The organism that is harmed in a parasitic symbiotic relationship Succession The series of predictable changes that occur in a community over time Primary Succession The series of changes that occur in an area where no soil or organisms exist, nothing has ever existed Pioneer Species The first organisms to populate an area never populated before. Secondary Succession The series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms exist Example: after a natural disaster