Sponges are Fun!!
By: Morgan Graves
Cool Facts About Sponges!
Sponges belong to the phylum Porifera.
Sponges have many different characteristics. Sponges are asymmetrical, meaning that they have no symmetry. They only have one type of body cavity, called an osculum. They only have one digestive opening and they are called pores. They do not have a circulatory, respiratory, excretory, nervous, or reproduction system.
Sponges can be beneficial or harmful to humans. One way they are beneficial to humans is that they clean out the nasty stuff in the ocean water around us. Our fish would taste different if the water was not as clean because of sponges. They are used for sponges for us to bathe and clean with and they are used to make glue. They are harmful to humans because they take up space in the ocean water for fish or plants that we could eat. They could also grow and overpopulate to where they are choking out other plants that our food sources live in. Then that leaves us with less food.
They can also be beneficial and harmful to the environment. They clean the water around them so the fish and plants can be healthy. They are not useful in any other way for the environment because they just sit and take up space.
Here are some pictures attached of different sponges in their environment and how they are used.