Real organs are absent in (a) Mollusca (b) Coelenterata (c) Arthropoda (d) Echinodermata

+1 vote
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asked Nov 2, 2017 in Biology by jisu zahaan (28,760 points) 26 375 814

Real organs are absent in 

(a) Mollusca 

(b) Coelenterata 

(c) Arthropoda 

(d) Echinodermata

1 Answer

+1 vote
answered Nov 2, 2017 by sforrest072 (157,439 points) 61 410 943

(b) Coelenterata 

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