Definitions
biological magnification
While energy decreases as it moves up the food chain, toxins increase in potency.
Water cycle steps
Evaporation, condensation, precipitation, run off, transpiration, infiltration
food chain
A series of steps in which organism transfer energy by eating and being eaten.
What organism carry out photosynthesis?
plants, algae, Cyanobacteria
What process uses CO2 from the atmosphere?
Photosynthesis
Food web
A community of organisms where there are several interrelated food chains,
What converts N into useable forms?
Lightning and bacteria
closed system
A system in which no matter is allowed to enter or leave.
Mutualism
A relationship between to organisms in which both benefit.
How does carbon enter the atmosphere?
Respiration and combustion
Producer
An organism that can make its own food. Bottom of food web and pyramid.
What is the main reservoir of water on earth?
Oceans
Energy pyramid
A diagram that shows the amount of energy that movies from one feeding level to another in a good web.
Commensalism
A relationship between two organisms in which one organism benefits and the other is unaffected.
Ecology
Scientific study of interactions among organisms and between organisms and their environment.
Detrivore
An organism that break down wastes and dead organisms.
what process contributes to the formation of groundwater?
Percolation
Biotic factors
All the living organism that inhabit an environment
Parasitism
A relationship between organisms of different species where one benefits and the other is harmed.
Name 4 types of bacteria involved in the nitrogen cycle.
Nitrogen fixing bacteria, decomposing bacteria, nitrifying bacteria, denitrifying bacteria.
Biosphere
Life supporting portions of earth composed of air, land, fresh waters and salt water, (highest level of organization).
Rain, sleet, and snow are examples of what?
Precipitation
Abiotic factors
Non living components of environment.
On a food pyramid energy is lost as?
Heat
what do the denitrifying bacteria do?
They convert nitrates which are what plants need, back to atmospheric nitrogen.