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| A food chain is where several animals are linked
in their feeding habits. The sun always starts the food chain.
Most of the time a food chain will go from small animals to bigger
animals. Usually a chain has two ends but with the food chain in
a ecosystem turns into a circle. At the end of a food chain there will be
an animal last and most animals just die on the ground. So the body
will rot and decay, and then the body will become fertilizer for plants that
will start another food chain. An example of a food chain is that the sun will start it off. Next plants will use the sun to make food. Then a mouse will eat those plants. Next a snake will come along and eat the mouse. Then a bird will come down and eat that snake. And eventually that bird will die and will land on the ground, so its decaying body will eventually become fertilizer and the sun will help it become a plant. So you see, instead of it really being a chain it is more like a circle, because comes back around. Another example of a food chain is from a water habitat. First plankton will start it off. Then small fish will eat the plankton. Next bigger fish will eat the smaller fish. Then even bigger fish will eat those fish. Next even bigger fish will eat those fish. Then a shark will eat that fish. Finally a whale will eat the shark. What is different in this food chain is that the plankton starts it off, and the food chain ends with the whale. |
