2011年12月3日星期六

Food Chain and Food Web 食物链和食物网




Plants are producers because they use energy from the Sun to produce food.

Animals are consumers because they cannot make their own food. Instead they eat plants or other animals for energy. 

There are three types of consumers.

1. Animals that only eat plants are herbivores.
2. Animals that eat other animals are carnivores.
3. Animals who eat animals and plants are called omnivores.

There are also decomposers that eat dead animals. 

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