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Ecosystem
Ecosystem:all the interacting parts of a biological community and its enviroment.
Sustainable enviroment
An ecosystem that is capable of withstanding pressure and giving support to a variety of organisms.
Biotic
The living parts of an organism
e.g. a tree,deer or rabbit
Abiotic
The non-living parts of an ecosystem
e.g. river rock or pond
Lithosphere
The hard part of the earths surface.
Hydrosphere
All the money on earth including lakes.rivers,oceans....
Atmosphere
The layer of gases above earths surface.
Biosphere
The regions of earth where organisms exist
Nutrients
A chemical that is essential to living things and is cycled through ecosystems.
e.g. O2
Eutrophication
When nutrients in aquatic are increased,which increases the the population of primary producers.
Photosynthesis
When sunlight energy is changed into chemical energy.
Trophic Level
A category of animals that is defined by how they get their energy
e.g. grass is in the first trophic level.
Biomass
The total mass of living organisms in a certain area or grop
Trophic efficiency
The measure of ow much energy is transferred from one trophic level to the next higher level.
Bioaccumulation
When a organism ingest a material (toxins) faster than they than it eliminates them.
Biomagnification
when toxins consumed by one trophic level move to the next trophic level.
Cellular respiration
A process when objects release energy from organic molecules (carbohydrates) in the presence of oxygen.
Fermentation
A process when objects release energy from organic molecules (carbohydrates) without oxygen.
Greenhouse gases
A gas prevents heat from leaving the atmosphere , in turn increasing the atmospheres temperature.
Greenhouse effect
The warming of earth because of the Greenhouse gases.
Acid precipitation
Any precipitation that has a pH level lower than 5.6 caused by acidic gases mixing with water
Author
paulmckeand
ID
283367
Card Set
Science chapter 1 flash cards
Description
The flashcards for the first chapter of science
Updated
2014-09-17T21:16:12Z
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