They have many small feet that they use to move along the bottom of the ocean.
Nearly all of them have a shell.
This earthworm inside moist soil.
Food and water enter their body through these pores.
Their body is full of holes, known as pores.
They have poisonous tentacles that they use to defend themselves.
Some of them are aquatic and live in water.
Starfish and sea urchins belong to this group of invertebrates.
Some of them live in water.
All of them have soft muscular bodies that they use to move along the ground or through the water.
Some of them are terrestrial and live on land.
They have a long soft segmented body that is made up of rings.
They are fixed to the ground so they cannot move around.
They can be very dangerous animals.
They live at the bottom of the sea.
