Flatworms

__**Digestive system**__:a flatworm has a combination digestive/excretory system. it takes food in and gets rid of its waste through the same opening by:Jessica __**Nervous system:**__ a flat worm has a very simple nervous system with two nerve cords running down either side. it has to simple brains called ganglia, witch are simple bundles of nerves it also has to eye spots that help it scene light. by: Jessica __**Body plan:**__ Flatworms have bilateral symmetry. If you would split a flatworm right down the middle, the body exactly mirrors itself. By:Becca __**Picture**__ __**Positive impact on humans:**__ Flatworms have a positive impact on humans because they need to live in clean water. If you don't find flatworms in water, that tells us that the water is not clean. Flatworms tell us important information when we find them. By: Becca. __**Negative impact on humans**__ __**1 interesting fact**__
 * Flatworms**