Question

Select the correct option:

On very special feature in the earthworm is that:

• A. fertilization of eggs occurs inside the body
• B. the typhlosole greatly increases the effective absorption area of intestine
• C. the S-shaped setae embedded in the integument are the defensive weapons used against the enemies
• D. it has a long dorsal tubular heart.

Answer 1

Answer: (B)

the typhlosole greatly increases the effective absorption area of intestine

From 27th segment upt 23-25 segments in front of the anus in intestine of earthworm, lies a highly glandular and vascular part called typhosole. It greatly increases the effective absorption area for digested food in the intestine.