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9th grade Biology Honors Mr. Seally

carrying capacity

largest number of individuals of a population that a environment can support


destruction of forests

direct harvesting

the destruction of an organism, or the removal of an organism from its habitat

fossil fuel

a nonrenewable energy resource formed from the remains of organisms that lived long ago

global warming

an increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes)


the development of industry on an extensive scale

nonrenewable resource

a resource that cannot be replaced

nuclear fuel

an energy source that results from splitting atoms

ozone shield

the layer of ozone gas in the upper atmosphere that protects Earth from some of the Sun's radiation


release of harmful materials into the environment

renewable resource

a natural resource that can be restored


the practical application of science to commerce or industry


an exchange of one benefit for another

water cycle

the continuous process by which water moves from Earth's surface to the atmosphere and back


to chase or search for for the purpose of catching or killing


illegal hunting

endangered species

a species whose numbers are so small that the species is at risk of extinction


substance that destroys many different organisms


a chemical used to kill pests


a chemical agent that destroys plants or inhibits their growth


the preservation and careful management of the environment and of natural resources

biological control

a method of pest control that involves the use of naturally occurring disease organisms, parasites, or predators to control pests


the total mass of living matter in a given unit area

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