A model that describes the feeding relationship between a producer and a single line of consumers.
These trees drop their leaves as winter approaches and grow new leaves in the spring.
Organisms that get their energy by eating other organisms.
Large goegraphic areas that are similar in climate and have similar types of plants and animals.
A model that shows the amount of energy availabe at each feeding level of an ecosystem.
The living parts of an ecosystem.
How carbon moves through earths atmosphere and its ecosystem.
These trees have needlelike leaves that produce food all year long.
An organism that captures energy and stores it in food as chemical energy.
scientific study of interactions among organisms and between organisms and their environment.
The lower and of a river that feeds into the ocean.
The movement of water through the enviorment.
The word used to describe a particular enviorment and all the living things that are supported by it.
organism that breaks down and obtains energy from dead organic matter.
A series of events that happen over and over again.
The nonliving parts of an ecosystem.
The movement of nitrogen through earth.
Model of feeding relationships between many different comsumers and producers in an ecosystem.