Answers

2016-02-16T19:19:28+05:30
Becoz they make their food themselves all animals & sum plants depend directly or indirectly on them.food chain start from them
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2016-02-16T19:19:38+05:30
They're called producers, because they make their own food by converting sunlight through photosynthesis. They also act as food, providing energy for other organisms. In the Great Lakes, mostproducers are phytoplankton, or microscopic floating plants. An example of phytoplankton is green algae.
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pls mark it as brainliest answer..