Answer:
c. Porifera - gastrovascular cavity, coelom present
Explanation:
Porifera is a phyla of organisms that do not have coelom. They possess several pores and canals used to perform their biological functions and which allows the circulation of water through them.
They also posses two thin cell layers which are sandwiched together. The two layers are the outer layer (epidermis) and the inner layer (inner cavities).
Porifera do not possess gastrovascular cavity (digestive, circulatory or nervous systems). In other to obtain oxygen and food and to excrete wastes, they depend on the constant influx of water through the pores and canals in their body
Sponges are members of the porifera phylum
The combination of the phylum and description is wrong is option c. Porifera - gastrovascular cavity, coelom present.
It is treated as the phylum of organisms where it does not include the a coelom. It possessed the various poses and the canals that should be used for performing the biological functions and permits the circulation of water via them. It does not have a gastrovascular cavity. Also, for obatining the oxygen and food, it depend upon the influx of water that remains the same.
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