"There are holes or 'pores', all over the body. They are commonly called 'sponges', and are mainly found in marine habitats."
The above statement signifies which of the following phylums?
A. Porifera
B. Ctenophora
C. Platyhelminthes
D. Annelida
Answer: Option A
This Question Belongs to Biology GK Chapter Wise >> Human Diseases
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