How do poriferan animals differ from coelentrate?
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Poriferan |
Coelentrate |
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1. There are pores called ostia all over the body and a large opening at the top. 2. There canal system for circulating water throughout the body. 3. External skeleton is present. 4. The body design show minimal differentiation. 5. Tentacles are absent. |
1. There is only one opening. 2. There is no water canal system in the body. 3. Skeleton is absent. 4. They show more body design differentiation. 5. Tentacles are present. |
What are the advantages of classifying organisms?
What are the major divisions in the plantae? What is the basis for these divisions?
Which organisms are called primitive and how are they different from the so-called advanced organisms?
What are the differences between amphibians and reptiles?
