Balanoglossus and saccoglossue are the members of

Options

A. Hemichordata
B. Urochordata
C. Tunicata
D. Cephalochordata

Answer

**Step-by-Step Solution:**

1. **Identify the Organisms**: The question asks about Balanoglossus and Saccoglossus. These are two specific organisms that need to be classified into their respective phylum.

2. **Research the Classification**: Both Balanoglossus and Saccoglossus are known as Acorn worms. They are marine animals that are part of the animal kingdom.

3. **Determine the Phylum**: Upon researching, it is found that both Balanoglossus and Saccoglossus belong to the phylum Hemichordata. This phylum is characterized by certain features, including the presence of a true body cavity (coelom) and branchial openings (gill slits) for respiration.

4. **Examine the Characteristics**:
- Balanoglossus has branchial openings (gill slits) for respiration and a notochord present in its upper part.
- Saccoglossus is noted for having concentric rings of muscle fibers in its proboscis, which is a part of its body structure.

5. **Conclusion**: Based on the classification and characteristics, Balanoglossus and Saccoglossus are confirmed to be members of the phylum Hemichordata.

**Final Answer**: Balanoglossus and Saccoglossus are members of the phylum Hemichordata.

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