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Life and energy
N/A
27
Biology
9th Grade
10/14/2009

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Term
Energy
Definition
The ability to do "work"or cause a change
Term
Kinetic energy
Definition
energy at work
Term
Potential energy
Definition
Stored energy
Term
Free Energy
Definition
Energy available to be used
Term
Entrophy
Definition
Energy not available to be used (disorder)
Term
First Law of Bioenergetics
Definition
The total amount of energy in the universe is constant
Term
Second Law of Bioenergetics
Definition
In energy conversions the amount of free energy in a system decreases and the amount of entrophy increases
Term
Autotrophs
Definition
"self feeder"
Term
Heterotrophs
Definition
"Other feeder"
Term
Photosynthesis
Definition
When organisms use radiant energy to produce chemical bond energy
Term
Chemosynthesis
Definition
When organisms can take chemical bond energy into food
Term
Respiration
Definition
Sum of all chemical reactions that produce ATP
Term
Metabolism
Definition
Sum of anabolism and catabolism
Term
Biotic
Definition
Living
Term
Abiotic
Definition
Non-living
Term
Population
Definition
Group of organisms of the same species in a given area at a given time
Term
Community
Definition
Group of populations in a given area at a given time
Term
Ecosystem
Definition
Group of populations in a given area at a given time (the abiotic factors of an ecosystem plus biotic factors)
Term
Ecosystem
Definition
Living and nonliving components of the earth
Term
Biosphere
Definition
All living things on earth
Term
Biome
Definition
Large environmental unit determined by climate
Term
Food Chain
Definition
Transfer of energy from one trophic level to the next
Term
Food Web
Definition
Two or more interlocking food chains
Term
Species
Definition
A group of like or similar organisms that actually or potentially interbreed to produce fertile offspring
Term
Ecological Niche
Definition
A species' role in the enviornment
Term
Gause's Rule
Definition
No two species can occupy the same niche for an extended period of time
Term
Ecological Succession
Definition
Orderly process of community change
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