Question

Nephridiopores of earthworm occur in segments

• A. All segments
• B. All segments except first two
• C. All segments except first two and last
• D. All except clitellum, first two and last segment

Answer 1

The correct option is B All segments except first two

In Earthworm, large number of very minute nephridiopores aree found in all segments except the fist two segments. Metabolic wastes are released out through these pores. Clitellar region contain 2000-2500 nephridiopores while other possess only 200-250. These pores are apertures of integumentary nephridia.

So, the correct answer is 'All segments except first two'.