Question

In earthworm, pharyngeal nephridia occur in segments

• A. 4,5 and 6
• B. 5,6, and 7
• C. 6,7 and 8
• D. 3,4 and 5

Answer 1

The correct option is A 4,5 and 6

Nephridia remove metabolic wastes from an animals body just like vertebrate kidneys. In an earthworm, the pharyngeal nephridia occure as three pairs in segments 4,5 and 6. They are closed internally without nephrostome and removes metabolic wastes from the blood only.

So, the correct answer is '4,5 and 6'.