This word describes any nonliving aspects of an environment.
What are Abiotic Factors?
This is the physical environment in which a species lives and to which it is adapted.
What is a habitat?
These are organisms that use energy from chemical compounds to make food by chemosynthesis.
What are chemoautotrophs?
This is the total mass of organisms at a trophic level.
What is biomass?
Biotic or abiotic?

What is biotic?
This is why two species can not inhabit the same niche for very long.
What is the competitive exclusion principle?
This is a food _________ .

What is a food chain?
This is the percentage of energy that travels from one trophic level to the next.
What is 10%?
Define niche.
What is the role of a species in its ecosystem?
These are the TWO ways energy can enter an ecosystem.
What are sunlight and chemical compounds?
Herbivore, carnivore, or omnivore?

What is a carnivore?
Define trophic levels.
What are the feeding positions in a food chain or web?
Most ecosystems get energy from this source.
What is sunlight?
Describe this animal's habitat.

What is a tropical rainforest?
Define producer.
What is an organism that makes food for itself and other organisms?
This is where most of the energy goes (what is not passed to the next trophic level).
What is released as heat or used for metabolic processes?
This is the word used to describe ecosystems that need constant inputs from the environment.
What is open?
Where does this creature get energy directly from?

What is by eating plants that store energy?
This type of decomposer includes sea cucumbers and catfish.
What are detritivores?
In this image, who would be in the second trophic level (primary consumers)?
What are the mouse, rabbit, and goat?