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chapter 21

Vocabulary

TermDefinition
Community all the populations of different species that live together and in the same area and time
population all the organisms of the same species that live in the same area at the same time
competition the demand for resources such as food, water, and shelter, in short supply in a community
limiting factor anything that restricts the size of a population
population density the size of a population compared to the amount of space available
biotic potential the potential growth of a population if it could grow in perfect conditions with no limiting factors
carrying capacity largest number of individual of one species that an environment can support
birthrate the number of offspring produced over a given time period
death rate the number of individuals that die over the same time period
extinct species a species that has died out and no individuals are left
endangered species a species whose population is at risk of extinction
threaded species a species at risk, but not yet endangered
migration the instinctive seasonal movement of a population of organisms from one place to another
habitat the place within an ecosystem where an organism lives
niche what a species does in its habitat to survive
producers organisms that get energy from the environment, such as sunlight, and make their own food
consumers organisms that get energy by eating other organisms
commercialism an attitude or philosophy devoted to supplying goods and services and making profits.
parasitism one in which one organism, the parasite, lives off of another organism, the host, harming it and possibly causing death.
Created by: user-1864016
Popular English Verbs sets

 

 



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