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3-2 Eergy Flow
chapter 3 section 2 on energy flow test date:10-24-12
17
Biology
10th Grade
10/20/2012

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Term
energy
Definition
one of the most important factors that determines the system's capacity to sustain life.
Term
sunlight
Definition
the main source of energy for life on earth
Term
autotrophs or producers
Definition
organisms that can capture energy from sunlight or chemicals
Term
photosynthesis
Definition
the process of capturing soloar energy
Term
formula for photosynthesis
Definition
carbon dioxide+water+carbohydrates+oxygen
Term
bacteria
Definition
the most common type of photosynthetic bacteria
Term
chemosynthesis
Definition
organisms use chemical energy to create carbohydrates.
Term
heterotroph or consumer
Definition
organisms that cannot harness energy directly from the physical environment
Term
herbivore
Definition
only eats plants
Term
carnivore
Definition
only eats meats
Term
omnivore
Definition
eats plants and meats
Term
detritvore
Definition
eats plant and animal remains and other dead matter.
Term
decomposers
Definition
breaks down organic matter
Term
food chain
Definition
a series of steps in which organisms transfer energy by eating or being eaten
Term
food web
Definition
links food chains together
Term
trophic levels
Definition
each step in a food chain or web
Term
biomass
Definition
the total amount of living tissue within a given trophic level
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