Energy in an Ecosystem
Is an organism that gets its energy requirements by consuming other organisms.
What is a Heterotroph?
The scientific discipline in which the relationship among living organisms and the interaction the organisms have with their environments are studied.
What is Ecology?
A model representing the many interconnected food chains and pathways in which energy flows through a group of organisms.
What is a Food Web?
The lowest level of organization.
What is an Organism?
Is an organism that collects energy from sunlight or inorganic substances to produce food.
What is an Autotroph?
The living factors in an organism's environment.
What is Biotic Factors?
Each step in a food chain or food web.
What is a Trophic Level?
A biological community and all of the abiotic factors that affect it.
What is an Ecosystem?
A heterotroph that eats only plants
What is a Herbivore?
This is the portion of the Earth that supports life.
What is the Biosphere?
A simple model that shows how energy flows through an ecosystem.
What is a Food Chain?
Individual organisms of a single species that share the same geographic location at the same time make up this.
What is a Population?
A heterotroph that preys on other heterotrophs, such as wolves, lions, and lynxes.
What is a Carnivore?
The nonliving factors in an organism's environment.
What is Abiotic Factors?
The total mass of living matter at each trophic level - decreases at each trophic level.
What is Biomass?
A group of interacting populations that occupy the same geographic area at the same time.
What is a Biological Community?
Organisms that eat both plants and animals.
What is an Omnivore?
Group of organisms that can interbreed and produce viable offspring; group of organisms with a distinct evolutionary history.
What is a Species?
This eats fragments of dead matter in an ecosystem, returns nutrients to the soil, air and water where the nutrients can be reused by organisms.
What are Detritivores?
A large group of ecosystems that share the same climate and have similar types of communities.
What is a Biome?