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Chapter 3

Living Resources

QuestionAnswer
natural resource anything in the environment that is used by people
renewable resources either always available or are naturally replaced in a relatively short time
nonrenewable resources natural resources that are not replaced in a useful time frame
pollution the contamination of earth's land, water, or air
environmental species the study of natural processes in the environment and how humans can affect them
clear-cutting the process of cutting down all the trees in an area at once
selective cutting cutting down only some trees in a forest and leaving a mix of tree species behind
sustainable yield an amount of a renewable resource such as trees that can be harvested with out reducing the future supply
fishery an area with a large population of valuable ocean organisms
aquaculture the practice of raising fish and other water dwelling organisms for food
biodiversity the number of different species in an area
keystone species a species that influences the survival of many other species in an ecosystem
genes the structures in an organisms cells that carry its hereditary information
extinction the disappearance of all members of a species from earth
endangered species species in danger of becoming extinct in the near future
threatened species species that could become endangered in the near future
habitat destruction the loss of natural habitat
habitat fragmentation breaking larger habitats into smaller, isolated pieces, or fragments
poaching the illegal killing or removal of wildlife from their habitats
taxol the substance that protects the Pacific yew tree
Created by: aewing
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