What are the characteristics of the groups Porifera, Cnidaria, Platyhelminthes, and Nematoda?
Porifera are very simple animals with a body covered...
What are the characteristics of the groups Porifera, Cnidaria, Platyhelminthes, and Nematoda?
Porifera are very simple animals with a body covered in pores. They live fixed on the seabed, such as sponges. Cnidaria have a soft body in the shape of a bag. They live in the sea, such as hydras, anemones, corals, and jellyfish. Platyhelminthes have a soft, elongated, and flat body. Examples of Platyhelminthes are tapeworms and planarians. Nematoda are soft and cylindrical animals, with an undivided body. An example of Nematoda is the intestinal worm.
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