any of a group of green pigments found in photosynthetic organisms
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
organisms that make their own food
an organism that obtains energy and nutrients by feeding on other organisms or their remains.
animals that hunt other animals for food
animals that feed on dead animals
a series of steps in which organisms transferring energy by eating or being eaten.
The elaborate, interconnected feeding relationships in an ecosystem
detritus food webs
based on decomposing plant and animal material or animal waste products. They include several levels of consumers, perhaps as many as four in an aquatic environment. Energy is derived from living producers.