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The sea almost has no end, it is so deep that the sun light doesn't get down there.
Eventhough our blood looks the same, red, but in fact it is really different from one person to another.
The food pyramid is a large list of 6 types of food that are good for human health.
Frogs are amphibians, meaning that they can live in water or land.
Butterflies are insects , which means they have three body parts, and colorful wings.
As the nectar, the sweet liquid produced by flowers, is passed from bee to bee, and turning to honey.