the study of how organisms interact with eachother and with their environments.

a group of individuals that interbreed and produce fertile offspring

members of a species that live in the same area at the same time.

all the populations in a particular area.

all the living things and their physical environments within a particular area.

includes all parts of earth that host life with all of its organisms and environments.

parts of an ecosystem that are living or used to be living.

parts of an ecosystem that have never been living

the specific environment in which an organism lives in.

anything an organism needs including nutrition, and shelter.

describes the number of individuals present at a specific place in a given population in a given time.

describes the number of individuals within a population per unit area

population distribution

describes how organisms are arranged within an area.

describes the relative number of organisms of each age within a population.

age structure diagram

visual tools scientists use to show the age structure of populations

proportion of males to females.

used to show how the likelihood of death varies with age.

is the arrival of individuals from outside a given area

is the departure of individuals from a given area

is a seasonal movement into and out of an area

when a population increases by a fixed percentage each year.

characteristics of the environment that limit population growth.

is the largest population size a given environment can sustainably support.

describes how a populations initial exponential increase is slowed and finally stopped by limiting factors

density-dependent factor

influences change with population density

density-independent factor

limiting factors who's influence is not affected by population density.

maximum ability to produce offspring in ideal conditions

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Question	Answer
ecology	the study of how organisms interact with eachother and with their environments.
species	a group of individuals that interbreed and produce fertile offspring
population	members of a species that live in the same area at the same time.
community	all the populations in a particular area.
ecosystem	all the living things and their physical environments within a particular area.
biosphere	includes all parts of earth that host life with all of its organisms and environments.
biotic factor	parts of an ecosystem that are living or used to be living.
abiotic factor	parts of an ecosystem that have never been living
habitat	the specific environment in which an organism lives in.
resource	anything an organism needs including nutrition, and shelter.
population size	describes the number of individuals present at a specific place in a given population in a given time.
population density	describes the number of individuals within a population per unit area
population distribution	describes how organisms are arranged within an area.
age structure	describes the relative number of organisms of each age within a population.
age structure diagram	visual tools scientists use to show the age structure of populations
sex ratio	proportion of males to females.
survivorship curve	used to show how the likelihood of death varies with age.
immigration	is the arrival of individuals from outside a given area
emigration	is the departure of individuals from a given area
migration	is a seasonal movement into and out of an area
exponential growth	when a population increases by a fixed percentage each year.
limiting factor	characteristics of the environment that limit population growth.
carrying capacity	is the largest population size a given environment can sustainably support.
logistic growth	describes how a populations initial exponential increase is slowed and finally stopped by limiting factors
density-dependent factor	influences change with population density
density-independent factor	limiting factors who's influence is not affected by population density.
biotic potential	maximum ability to produce offspring in ideal conditions

Created by: isa.xo

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