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ENV: Intro to Env

TermDefinition
Biodiversity The variety of life in an area
Gene A unit of heredity made of DNA that determines traits passed from parent to offspring.
Keystone species A species that has a critical role in maintaining the structure and balance of an ecosystem.
Ecotourism Responsible travel to natural areas that conserves the environment and supports local communities.
Endangered Species Act (ESA) A U.S. law designed to protect species at risk of extinction and their habitats.
Habitat The natural environment where an organism lives
Conservation plan A strategy for managing natural resources to protect species and ecosystems for the future.
Population A group of individuals of the same species living in the same area at the same time.
Niche The role an organism plays in its environment
Competition The struggle between organisms to survive as they use the same limited resources.
Predation An interaction where one organism (predator) kills and eats another (prey).
Parasitism A symbiotic relationship where one organism benefits (parasite) and the other is harmed (host).
Migration The seasonal movement of animals from one region to another for food
Life expectancy The average number of years an individual of a population is expected to live.
Poaching The illegal hunting
Endemic species A species found only in one specific geographic area and nowhere else.
Dispersion The pattern of spacing of individuals within a population (clumped
Mutualism A symbiotic relationship where both species benefit.
Commensalism A symbiotic relationship where one species benefits and the other is unaffected.
Symbiosis A close - long-term interaction between two different species.
Survivorship The proportion of individuals in a population that survive to a given age.
 



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