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A producer (also known as an autotroph) is an organism that is able to make complex chemical compounds (i.e, food) from sources of energy in the form of light or heat. Plants, which use sunlight, or tube worms, which use heat from deep sea vents, are examples of producers.

A first level consumer (also called primary consumers) gain their energy from eating producers. This category includes herbivores such as deer, elephants, horses, etc.

A second level consumer (also called a secondary consumer) gains it's energy through predation, or the catching and eating of other animals. Praying Mantids fall in this category. Mantids eat mainly insects, although they have been known to eat small amphibians, reptiles, and even the occasional hummingbird.

A decomposer is an organism that gains it's energy from dead or rotting material. Since Praying Mantids eat primarily live prey and not pre-dead carcasses, they are not considered decomposers.

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13y ago

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