Levels of Organization
A group of individuals of the same species living in a specific area.
What is a population?
Succession that begins on newly exposed bare rock where no soil exists.
What is primary succession?
A relationship where both interacting species benefit.
What is mutualism?
Organisms that create their own food through photosynthesis or chemosynthesis.
What are producers (or autotrophs)?
The average percentage of energy transferred from one trophic level to the next.
What is 10%?
All the living organisms and non-living factors interacting within an area.
What is an ecosystem?
The first organisms to colonize a barren area, such as lichens and mosses.
What are pioneer species?
A relationship where one organism benefits while the other is harmed.
What is parasitism?
Fungi and bacteria that break down dead matter and recycle nutrients.
What are decomposers?
Most of the energy lost between trophic levels escapes into the environment as this form.
What is heat?
All the different populations of interacting species in a shared habitat.
What is a community?
Succession that occurs after a disturbance disrupts an existing community without destroying the soil.
What is secondary succession?
A relationship where one organism benefits and the other is neither helped nor harmed.
What is commensalism?
An animal that consumes primary producers for energy.
What is a primary consumer (or herbivore)?
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If producers capture 10,000 Joules of energy, How much energy was LOST on its way to tertiary consumer?
What is 9,990 Joules?
A large regional area defined by its climate, plants, and animals.
What is a biome?
A stable, mature community that undergoes little ecological change over time.
What is a climax community?
Barnacles riding on a whale's skin to filter feed without affecting the whale is an example of this.
What is commensalism?
Animals that feed on the dead bodies of other organisms rather than hunting live prey.
What are scavengers?
A visual diagram showing the reduction of available energy at higher trophic levels.
What is an energy pyramid?
The global sum of all ecosystems on Earth where life exists.
What is the biosphere?
The gradual process by which ecosystems change and develop over time following a disruption.
What is ecological succession?
Bees acquiring nectar while cross-pollinating flowers illustrates this relationship.
What is mutualism?
A complex network of interconnected energy pathways showing all feeding relationships in an ecosystem.
What is a food web?
If a secondary consumer receives 50 Joules of energy, the producer level originally contained this much energy.
What is 5,000 Joules?