Bees are flying insects, closely related to wasps and ants.
There are approximately 20,000 species of bees, and they may be found on every continent except Antarctica.
Bees are adapted for feeding on nectar and pollen, the former primarily as an energy source, and the latter primarily for protein and other nutrients.
Most pollen is used as food for larvae.
Bees are extremely important as pollinators in agriculture.
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