AP BIO: Ecology Review (Answered) 96
Questions and Correct Answers, 100%
Correct. Latest Updated Fall 2024/2025.
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
logistic growth
Questions and Correct Answers, 100%
Correct. Latest Updated Fall 2024/2025.
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
logistic growth
