Levels of Organization
A biological community and all of the abiotic factor that affect it
Ecosystem
Living factors in an environment
Biotic Factors
Habitat
Type of heterotroph that only consumes plants
Herbivore
A model that shows the movement of energy from one organism to the next, without branching pathways
Organism
Nonliving factors in an environment
Abiotic Factors
Relationship in which one organism consumes the other for energy
Predation
Type of heterotroph that only consumes meat
Carnivore
Each step in a food chain or a food web
Trophic Level
A group of organisms of the same species that live in the same place at the same time
Population
Study of the relationship that living organisms have with each other and their environment
Ecology
A form of symbiosis in which on organism is helped but the other is hurt through the relationship
Parasitism
Type of heterotroph that consumes both meat and plants
Omnivore
Food Web
Community
A person who studies Ecology
Ecologist
A form of symbiosis in which on organism is helped but the other is neither hurt or helped
Commensalism
Type of organism that produces its own energy.
(plants)
Autotroph
The total living mass at each trophic level.
Biomass
The layer of the Earth that supports life
Biosphere
This US President was on the first people to set a focus on the preservation of land and the natural resources found on them
Theodore Roosevelt
Niche
Organism that eat the dead matter in the ecosystem
Detritivores
What is the 10% Rule
The 10% Rule means that when energy is passed in an ecosystem from one trophic level to the next, only ten percent of the energy will be passed on. A trophic level is the position of an organism in a food chain or energy pyramid.