The body plan of platyhelminthes is less advantageous than nematode because . Select one: a. it has flame cells b. it has no circulatory system c. it has no pseduocoelom d. it has radial symmetry

The correct answer is option c, that is, it has no pseudocoelom.

Explanation:

Platyhelminthes are also known as flatworms. They are generally parasitic, these are triploblastic species with bilateral symmetry. In Platyhelminthes, flame cells do the function of excretion, however, these species are devoid of a circulatory system. On the other hand, nematodes are also known as roundworms and like Platyhelminthes, the nematodes are also diploblastic species with bilateral symmetry.  

However, Platyhelminthes are acoelomate, on the other hand, nematodes are pseudocoelomate species. The Platyhelminthes lack a complete digestive system, while nematodes have a complete digestive system. Thus, it can be stated that the body plan of Platyhelminthes is less advantageous in comparison to nematodes because of no presence of pseudocoelom.  

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explanation:

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