Excretion in most Annelids take place by

Options

A. Kidneys
B. Flame cells
C. Nephridia
D. Ciliated funnel

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the method of excretion in most Annelids. Annelids are segmented worms, which include earthworms, leeches, and others.

2. **Evaluating the Options**:
- **Option 1: Kidneys**: Kidneys are primarily found in vertebrates, including humans, and are responsible for filtering blood and excreting waste as urine. This option is incorrect for Annelids.
- **Option 2: Flame Cells**: Flame cells are specialized excretory structures found in flatworms (Platyhelminthes), rotifers, and nematodes. They are not present in Annelids, making this option incorrect.
- **Option 3: Nephridia**: Nephridia are the excretory organs in Annelids. They function similarly to kidneys in vertebrates but are structurally different. Nephridia help in the removal of nitrogenous waste from the body, making this option correct.
- **Option 4: Ciliated Funnel**: Ciliated funnels are not a recognized excretory structure in Annelids. This option is also incorrect.

3. **Conclusion**: After evaluating all the options, the correct answer is **Nephridia** (Option 3), as they are the primary excretory structures in most Annelids.

**Final Answer**: Excretion in most Annelids takes place by **Nephridia**.

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