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AP BIO: Ecology Exam Review | Questions And Answers Latest {} A+ Graded | 100% Verified

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AP BIO: Ecology Exam Review | Questions And Answers Latest {2024- 2025} A+ Graded |
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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



carrying capacity - largest number of individuals of a population that a environment can support



limiting factors - Conditions in the environment that put limits on where an organism can live



density-dependent factors - limiting factors (such as competition, predation, parasitism, and disease)
that are affected by the number of individuals in a given area



density-independent factors - limiting factor that affects all populations in similar ways, regardless of
population size



reproductive rate - R= (births-deaths)/N [N- population size at beginning of interval]



growth rate - the amount by which a population's size changes in a given time



intrinsic rate - the mean rate of growth of a population calculated by birth minus death rates when the
population is free of competition with other species and from other factors that affect growth.



exponential growth - growth pattern in which the individuals in a population reproduce at a constant
rate

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