What do you know about earthworms?

By Regina

Earthworms live in the earth. They have got a long small body with a hundred rings or segments. They are protected by a thin and transparent membrane. They have an important digestive system with 2 stomachs. They also have a complex and effective circulatory system and an advanced nervous system. They´ve got 5 hearts! They haven´t got any teeth or bones. They are brown, pink and red. They eat leaves and plants and earthy substances.
Earthworms aerate and mix the soil. They help the soil and plants. Thanks to the earthworms, air and water enter the soil. The result is soil FERTILITY, and this is important. Earthworms convert large pieces of organic matter into humus. Humus is very FERTILE.
Earthworms help the planet because they help the plants. Plants give people oxygen. Earthworms are great friends of the world.