Levels of Organization
all parts of the earth and surrounding atmosphere where there is life
biosphere
when all members of a species dies
extinction
close, long-term relationship between species, usually involving exchange of food or energy
symbiosis relationship
ecological succession in new areas of land with no soil starting from nothing
primary succession
natural disasters
all living and nonliving things in an area
ecosystem
population size grows so large that is causes damage to environment
overpopulation
one organism harmed, one benefits
parasitism
succession where existing soil is present
secondary succession
oil extraction, deforestation, water use is examples of
resource extraction
all the populations in an area ta the same time
community
largest number of individuals of one species an ecosystem can support
carrying capacity
mutualism
stable community that no longer goes through major ecological change
climax community
oil spills, and littering are examples of
pollution
all members of the same species in an area at the same time
population
potential growth of a population if it could grow in a perfect environment
biotic potential
one organism benefits, one is uneffected
commensalism
first species that colonize the new undisturbed land (lichens and mosses)
balance between different parts of an ecosystem
dynamic equilibrium
a single member of a species
individuals
3 main reasons a population may decrease
loss of food, water, and shelter
member of SAME species work together for survival
cooperative relationship
process of a body of water becoming nutrient rich
eutrophication
species that are brought into an environment and cause damage to native species
non-native species