Sponges are included under the sub -kingdom

Options

A. Eumetazoa
B. Radiata
C. Animalia
D. Parazoa

Answer

**Step-by-Step Solution:**

1. **Understanding the Classification**: To determine under which sub-kingdom sponges are classified, we need to understand the broader classification of animals. Animals are divided into various kingdoms and sub-kingdoms.

2. **Identifying the Relevant Kingdom**: The kingdom that includes sponges is called "Animalia." However, we are specifically looking for the sub-kingdom classification.

3. **Sub-Kingdoms of Animalia**: The kingdom Animalia is divided into two main sub-kingdoms:
- Parazoa
- Eumetazoa

4. **Characteristics of Parazoa**: The sub-kingdom Parazoa includes organisms that have a cellular level of organization. Sponges belong to this category.

5. **Phylum of Sponges**: Within the sub-kingdom Parazoa, sponges are classified under the phylum Porifera.

6. **Conclusion**: Therefore, sponges are included under the sub-kingdom Parazoa.

**Final Answer**: Sponges are included under the sub-kingdom Parazoa.

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