How does the liver keep the frog from freezing while its hibernating?

When it croaks the liver warms up

The liver keeps the frog from freezing while it's hibernating because it develops large amounts of glucose (sugar) that flushes into every cell in its body. This syrupy sugar solution stops the cell from freezing and binds the water molecules inside the cells to prevent dehydration. Hope this is helpful... good luck.

The moths will eventually become extinct

Iwolud you, but i dont know what you are asking.