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Mara, Environmental Science Mind Map by Mind Map: Mara,
Science Mind Map
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Mara, Environmental Science Mind Map

levels of organization

organism-a living creature consisting of at least one cell

population-a family of the same type of organisms

community- different populations of organisms living together

ecosystem-biotic and abiotic factors living together

biotic factors-things in an ecosystem that are living or were once living, made of cells

abiotic factors-things in an ecosystem that are not and never were living, made of atoms

biome-the area in which an ecosystem exists including the climate and location

temperate deciduous forest

coniferous forest

freshwater biome

marine biome





food chain







food web

trophic levels

biodiversity- the variety of organisms in a single geographic area

genetic biodiversity-the difference in genetics.

species biodiversity-the difference in species

hot spots-spots where a large variety of species is found in one small area. There are 17 hot spots covering about 2% of earth's land area and are mostly found in the tropics


threatened species-species likely to become endangered in the near future

endangered species-species in danger of extinction throughout most/all land area

indicator species-plants and animals that by their presence, abundance, lack of abundance, or chemical composition demonstrate the healthiness or unhealthiness of an ecosystem

ecosystem biodiversity-the variety of organisms in an ecosystem

Ecological Succession- the process by which and ecosystem recovers from a distaster, man-made or natural

primary succession-this occurs in a place where an ecsystem has never existed

secondary succession-this occurs in an ecosystem that has been disturbed/destroyed by a natural/man-made disaster

pioneer species-smaller, grow faster, require fewer resources, thrive with little competition. these species usually thrive at the beginning of succession

climax community-this is a diverse community of species that take longer to grow and survive easily in a certain environment. These species usually do not change unless affected by a natural/man-made disaster


limiting factors

conditions of the environment that limit the growth of a species

biotic and abiotic factors that prevent the continuous growth of a species, without limiting factors, a species would exceed the carrying capacity and cause the ecosystem to die

carrying capacity-the number of individuals of a species that an ecosystem can support

Population-the number of a certain kind of living organism

population growth- the growth of a population

j-curve-a curve of a graph that is very consistantly a straight line before growing exponentially

s-curve-a curve of a graph that starts out as a j-curve, but after it grows exponentially, it levels off.

population growth rate-the speed at which a population grows, measured by comparing the amount of people being born the of amount of people dying

exponential growth-the growth of a population exponentially


water pollution

impermeable-something that does not absorb water such as asphault and roof-tops, runoff-water that runs off from impermeable surfaces and carries pollutants to a main water source., erosion-the gradual wearing down of soil and water carries it away. This is usually caused by lack of vegitation

urbanization-the growth of cities, wetlands-wetlands are home to thousands of species and help break down water pollutants. Urbanization destroys wetlands.

point source pollution-pollution that can be easily stopped because it comes from a single source.

nonpoint source pollution-pollution that is not easily stopped because it comes from a variety of sources

organic pollutant- pollutants such as detergents, disinfectant products, fat and grease, insecticides and herbicides, fuel waste, debris, and chemicals from personal hygene products

inorganic pollutant-pollutants such as industrial acidity, ammonia, fertilizers, heavy metals, and silt/sediment

water purification

aquifers-porous rock that contains a large amount of fresh water

desalination-the process of removing salt from water to make the water drinkable

watershed-the area drained by a river or other body of water

natural resources-natural materials used for human benefit

renewable resources- resources that replenish themselves and do no run out

nonrenewable resource-resources that will eventually be used up