AP BIO: Ecology Review Questions With Correct Answers
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Course
AP Biology
Institution
AP Biology
AP BIO: Ecology Review Questions
With Correct Answers
Population - answera group of organisms of the same species populating a given area
Community - answer(ecology) a group of interdependent organisms inhabiting the same
region and interacting with each other
ecosystem - answera system formed...
AP BIO: Ecology Review Questions
With Correct Answers
Population - answer✔✔a group of organisms of the same species populating a given area
Community - answer✔✔(ecology) a group of interdependent organisms inhabiting the same
region and interacting with each other
ecosystem - answer✔✔a system formed by the interaction of a community of organisms with
their physical environment
biosphere - answer✔✔the regions of the surface and atmosphere of the Earth (or other planet)
where living organisms exist
habitat - answer✔✔the type of environment in which an organism or group normally lives or
occurs
niche - answer✔✔(ecology) the status of an organism within its environment and community
(affecting its survival as a species)
size - answer✔✔the property resulting from being one of a series of graduated measurements (as
of clothing)
population density - answer✔✔number of individuals per unit area
dispersion - answer✔✔The pattern of distribution of organisms in a population
age structure - answer✔✔proportion of people in different age groups in a population
survivorship curves - answer✔✔They show the likelihood of survival at different ages
throughout the lifetime of the organism.
type I - answer✔✔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 - answer✔✔Survivorship curve in which there is an equal likelihood of dying throughout
life (such as birds or small mammals).
biotic potential - answer✔✔the maximum reproductive rate of an organism, given unlimited
resources and ideal environmental conditions
carrying capacity - answer✔✔largest number of individuals of a population that a environment
can support
limiting factors - answer✔✔Conditions in the environment that put limits on where an organism
can live
density-dependent factors - answer✔✔limiting factors (such as competition, predation,
parasitism, and disease) that are affected by the number of individuals in a given area
density-independent factors - answer✔✔limiting factor that affects all populations in similar
ways, regardless of population size
reproductive rate - answer✔✔R= (births-deaths)/N [N- population size at beginning of interval]
growth rate - answer✔✔the amount by which a population's size changes in a given time
intrinsic rate - answer✔✔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 - answer✔✔growth pattern in which the individuals in a population
reproduce at a constant rate
logistic growth - answer✔✔growth pattern in which a population's growth rate slows or stops
following a period of exponential growth
sigmoid curve - answer✔✔a period of exponential growth; population approaches its
environmental limits, growth slows and finally stabilizes, fluctuating around the carrying
capacity of the environment
population cycles - answer✔✔some populations have boom and bust cycles. Large growth, and
then a lot of death, and then growth.
r-selected species - answer✔✔Species that reproduce early in their life span and produce large
numbers of usually small and short-lived offspring in a short period.
opportunistic species - answer✔✔individuals that take advantage of what they have. usually like
insects. they have short life spans, they die quickly, mature very quickly, they usually only get
one chance to reproduce, when they do they have tons of offspring, and consequently don't take
care of their kids.
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