B12 Flashcards
Sun is the?
principal source of energy input to biological systems
Population
All the members of the same species in a given area
Community
All the living organisms in a given are
Ecosystem
A unit containing all of the organisms and their environment interacting together in a given area
Biotic Factors
A living organism that effects it’s environment
Abiotic Factors
Non-living factors that shape it’s environment
Food chains
diagram showing the transfer of energy from one organism to the next, beginning with the producer
Food Web
Combination of interconnected food chains
Producers
Organism that makes it’s own organic nutrients, through photosynthesis.
Consumers
Organism that gets its energy by feeding on other organisms
Decomposers
Organism that gets its energy from dead or waste organic matter
Tropic Level
position of an organism in a food chain or food web
Grazers food chain
principal energy input is green plants
Detritus food chain
principal energy input is dead organic matter
Carnivore
An animal that gets its energy by eating other animals