A) Septal nephridia - Both are exonephric and pharyngeal nephridia
B) Typhlosole - Helps in grinding the soil particles and decaying leaves
C) Sensory system - Possesses light and touch receptors in earthworm
D) Gizzard - Internal median fold present in the dorsal wall of the intestine of earthworm
Correct Answer: C
Solution :
Septal nephridia and pharyngeal nephridia Both are enteronephric. (ii) Typhlosole - Internal median fold present in the dorsal wall of the intestine of earthworm, meant to increase the absorption surface area. (iii) Gizzard - Helps in grinding the soil particles and decaying leaves.
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