Excretion in Taenia is done by

Options

A. Nepheridia
B. Flame cells
C. Green gland
D. Malpighian bodies

Answer

**Step-by-Step Solution:**

1. **Identify the Organism:** The question is about excretion in Taenia, which is a type of tapeworm.

2. **Classify the Organism:** Taenia belongs to the phylum Platyhelminthes, which includes flatworms.

3. **Understand the Excretory System:** In Platyhelminthes, the primary excretory structures are known as flame cells.

4. **Explain the Function of Flame Cells:** Flame cells are specialized cells that help in the excretion of waste products. They function by filtering waste from the body fluids and excreting it through tubules.

5. **Mention Other Excretory Structures:** While flame cells are the primary excretory organs in Taenia, they also have a secondary excretory system involving protonephridia.

6. **Eliminate Incorrect Options:**
- Nephridia are found in earthworms, not in Taenia.
- Green glands are excretory structures in insects.
- Malpighian tubules are also found in insects, particularly in cockroaches.

7. **Conclude the Answer:** The correct answer for excretion in Taenia is through flame cells.

**Final Answer:** Excretion in Taenia is done by flame cells.

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