In every ecosystem, primary producers and consumers are linked through feeding realationships. Food chains can vary at length. Many herbivores will eat plants or grass and then the carnivores will eat them. Carnivores are at the top. Most feeding realationships are very complicated. The bigger animals often feed on the herbivores. They call this the food web.
The web can be different depending on the area. A lot of species have been left out. Decomposers are as important as composers are. They can convert dead material to things aniamls can eat. They also release nutrients.The area around the animals often chages the food chain so it is hard to predict what will happen. If one of the chains of the foods have disturbance then it will effect the whole chain in a bad way.
Pyramids are another way of showing the food chain. The primary producer is at the bottom. Then comes the frist-level consumer ,then the second-level , then the third-level consumer. It illustrates the way to the top of the food chain.
Food Chain-a series of steps in which oranisms transfer energy by eating and being eaten
Phytoplankton-primary producers are mixture of floating algae
Food web-network of feeding interactions
Zooplanton-diverse group of small swimming animals
Ecological pyramids-the relative amount of energy or matter
Biomass-total amont of living tissue within a given trophic level
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