Sponges

__**Digestive system-**__ Sponges do not have a digestive system. Instead the water flow cleans out their system. By Marissa __**Nervous system**__ Sponges do not have a nervous system. By Ashley __**Body plan**__ A symmetrical. By Ashley __**Picture**__ __**Positive impact on humans**__ A lot of people like to use natural sponges when they take baths. By Ashley __**Negative impact on humans-**__ One negative impact on humans that sponges have is that some species of sponges are dangerous to the touch. We can get burned or allergic reactions when we come in contact with them. By Marissa __**1 interesting fact**__- One interesting fact about sponges is that they reproduce asexually, that means that there is no fertilization, which means that they bud to reproduce. That means that they bud, which then makes new sponges. By Marissa
 * Sponges**