Excretory organ in Balanoglossus are …………. (DPMT 1991, 2008)
A. nephridia
B. antennary gland
C. collar cord
D. proboscis gland
Answer:D
Excretory organ in Balanoglossus are …………. (DPMT 1991, 2008)
A. nephridia B. antennary gland C. collar cord D. proboscis gland