Lack of symmtery is identified in which group of animals?
Correct answer: B. Parazoa
- A. Porifera
- B. Parazoa
- C. Coelomates
- D. Protozoa
Explanation
Parazoa refers to the class of organisms in the kingdom Animalia which lacks tissue grade of organization. Only Porifera (sponges) are included in this phylum.
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