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AP BIO: Ecology Review Questions and Answers
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AP BIO: Ecology Review Questionsand Answers
Population
✓ ~~~a group of organisms of the same species populating a given area
Community
✓ ~~~(ecology) a group of interdependent organisms inhabiting the same region and
interacting with each other
ecosystem
✓ ~~~a system formed by the interaction of a community of organisms with their physical
environment
biosphere
✓ ~~~the regions of the surface and atmosphere of the Earth (or other planet) where living
organisms exist
habitat
✓ ~~~the type of environment in which an organism or group normally lives or occurs
niche
✓ ~~~(ecology) the status of an organism within its environment and community (affecting
its survival as a species)
size
✓ ~~~the property resulting from being one of a series of graduated measurements (as of
clothing)
, population density
✓ ~~~number of individuals per unit area
dispersion
✓ ~~~The pattern of distribution of organisms in a population
age structure
✓ ~~~proportion of people in different age groups in a population
survivorship curves
✓ ~~~They show the likelihood of survival at different ages throughout the lifetime of the
organism.
type I
✓ ~~~Survivorship curve in which the likelihood of dying is small until late in life, when
mortality increases rapidly (such as Humans or elephants).
type II
✓ ~~~Survivorship curve in which there is an equal likelihood of dying throughout life (such
as birds or small mammals).
type III
✓ ~~~Survivorship curve in which organisms are most likely to die when young; the few
survivors tend to live until old age (such as oysters, salmon, or insects).
biotic potential
✓ ~~~the maximum reproductive rate of an organism, given unlimited resources and ideal
environmental conditions
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