In Ascaris ,excretory wastes are removed by

Options

A. metanephridia through nephridiopore
B. flame cells through the excretory pore
C. an excretory tube through the excretory pore
D. general body surface

Answer

**Step-by-Step Solution:**

1. **Understanding Ascaris**: Ascaris is a genus of parasitic roundworms, commonly known as intestinal roundworms. They have a simple body structure and a specialized system for excretion.

2. **Excretory System in Ascaris**: The excretory system in Ascaris is not as complex as in some other organisms. It primarily consists of a network of tubes that help in the removal of waste products.

3. **Identifying the Excretory Structures**: In Ascaris, the excretory system includes excretory tubes that collect waste materials from different parts of the body.

4. **Excretion Process**: The waste products collected in the excretory tubes are expelled from the body through specific openings known as excretory pores.

5. **Elimination of Wastes**: The excretory pores allow for the elimination of nitrogenous wastes, primarily in the form of ammonia and urea, which are byproducts of protein metabolism.

6. **Conclusion**: Therefore, the correct answer to the question "In Ascaris, excretory wastes are removed by" is through excretory tubes that open at the excretory pores.

**Final Answer**: In Ascaris, excretory wastes are removed by excretory tubes through the excretory pores.

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