Sponges are rare animals in that they do not have a clear organ to perform various functions. The most important structure is a canal and chamber system called the water flow system, where water circulates and carries food and oxygen to the sponge.
The sponge has no internal organs. They have no muscles, nervous system, or circulatory system. The walls are lined with many small pores called pits that allow water to flow into the sponge. Also, does the sponge have mesoderm?
Do sponges have tissues or organs?
The sponge has no tissues or organs. The beating choanocytes (special cells with flagella) and the porous structure of the sponge's body pump water throughout the body.
What is the most important structure of the sponge?
The most important structure is a canal and chamber system called the water flow system, in which water circulates and carries food and oxygen to the sponge. The water flow system also helps disperse gametes and larvae and remove waste products.
Why are sponges classified as animals?
Sponges are only classified as animals. They have cells that are independent of each other but work together within the colony. It is possible for a single sponge cell to survive and reproduce, creating a whole new sponge colony. They are so simple that they have no tissues or organs, but they have special cells
How do sponges propagate?
Sponges also breed using their pumping. That is, pump sperms and eggs into the water. They were the first animals to reproduce sexually. The sponge has no tissues or organs. The beating choanocytes (special cells with flagella) and the porous structure of the sponge's body are adapted to the pump water throughout the body.
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