Ascidia belongs to subphylum

Options

A. Cephalochordata
B. Craniata
C. Urochordata
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Classification of Chordates**: The phylum Chordata is divided into three subphyla: Urochordata (or Tunicata), Cephalocordata, and Vertebrata.

2. **Identifying Urochordata**: Urochordata, also known as Tunicata, includes organisms that possess a notochord only in their larval stage, specifically in the tail region.

3. **Recognizing Ascidia**: Ascidia is a well-known example of Urochordata. It is a marine organism that exhibits the characteristics of this subphylum.

4. **Conclusion**: Since Ascidia belongs to the Urochordata subphylum, the answer to the question is that Ascidia belongs to the subphylum Urochordata.

**Final Answer**: Ascidia belongs to the subphylum Urochordata.

---