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Vocab #3 =]

QuestionAnswer
carrying capacity the number of organisms of one species that an environment can support indefinitely.
density dependent factor - include disease
density independent factor - can affect populations
exponential growth that as a population gets larger
life-history pattern an organism’s reproductive pattern.
age structure refers to the proportions of the population that are in different age levels.
birthrate the number of live births per 1000 population in a given year.
death rate the number of deaths per 1000 population in a given year.
demography the study of human population size.
double time the time needed for a population to double in size.
acid precipitation rain
biodiversity refers to the variety of species in a specific area.
edge effect the different conditions along the boundaries of an ecosystem.
endangered species when its numbers become so low that extinction is possible.
exotic species such as the goat and the lamprey
extinction the disappearance of a species when the last of its members dies.
habitat degradation the damage to habitat by pollution.
habitat fragmentation the separation of wilderness areas from other wilderness areas.
ozone layer absorbs some of the ultraviolet waves striking the atmosphere
threatened species when the population of a species is likely to become endangered.
captivity an organism that is held by people.
conservation biology study and implementation of methods to protect biodiversity.
natural resources those parts of the environment that are useful or necessary for living organisms.
reintroduction program such as this one
sustainable use strives to enable people to use natural resources in ways that will benefit them and maintain the ecosystem.
Created by: dancingdiamond
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