NEET Biology Structural Organisation In Animals Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Question & Answer Discuss:

One very special feature in the earthworm Pheretima is that

(a) The S-shaped setae embedded in the integument are the defensive weapons used against the enemies.

(b) The typhlosole greatly increases the effective absorption area of the digested food in the intestine.

(c) It has a long dorsal tubular heart.

(d) Fertilization of eggs occurs inside the body.