In Herdmania, excretion is carried out by

Options

A. Kolliker's pit
B. protonephridia
C. solenocytes
D. neural gland

Answer

To answer the question regarding how excretion is carried out in Herdmania, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**:
- Herdmania is a marine organism that belongs to the subphylum Urochordata, which is part of the phylum Chordata.

2. **Understand the Excretory System**:
- In Urochordates, the excretory system is not as complex as in higher organisms. The primary excretory organ in Herdmania is crucial to identify.

3. **Excretory Organ in Herdmania**:
- The excretory process in Herdmania is carried out by the **neural gland**, also referred to as the supra-neural gland. This gland is located in the brain region of the organism.

4. **Characteristics of the Neural Gland**:
- The neural gland is typically brown in color and has branching tubules, which assist in the excretion process.

5. **Eliminate Incorrect Options**:
- **Colliculus or Spit**: This is associated with amphioxus, not Herdmania.
- **Protonephridia and Solenocytes**: These are excretory structures found in flatworms (Platyhelminthes) and are not present in Herdmania.

6. **Conclusion**:
- Based on the above information, the correct answer to the question is that excretion in Herdmania is carried out by the **neural gland**.

### Final Answer:
Excretion in Herdmania is carried out by the **neural gland**.

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