One very special feature in the earthworm Pheretima is that
Biology · Class 11 · CBSE — Structural Organisation in Animals
One very special feature in the earthworm Pheretima is that
- fertilization of eggs occurs inside the body
- the typhlosole greatly increases the effective absorption area of intestine
- the S-shaped setae embedded in the integument are the defensive weapons used against the enemies
- it has a long dorsal tubular heart.
Answer
(B) the typhlosole greatly increases the effective absorption area of intestine
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