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Tardigrade
Question
Biology
True coelom appeared first in the course of evolution in
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Q. True coelom appeared first in the course of evolution in
WBJEE
WBJEE 2007
A
Aschelminthes
B
Chordata
C
Echinodermata
D
Annelida
Solution:
True coelom is lined by peritonium and is formed by splitting of mesoderm called schizocoelom. True coelom firstly appeared in Annelida.