invertebates

Okay so today I'm talking about  invertebrates. Did you know the simplest invertebrates is a sponge? Did you know that a sea sponge can loose a part of its body and grow it back this is called regeneration. Oh and here is a another invertebrates called the flatworm.  A flatworm is a worm with a long soft body that is flat. The flatworm uses animals to supply it with food, water and oxygen. Tape worms are flatworms to. I've seen a tape worm before I saw it in Minnesota we were cleaning fish and there was a little tape worm squirming.