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In Sponges : 1. Eggs and sperms are produced by different individual. 2. Fertilisation is external 3. Development is indirect having a larval stage which is morphologically similar to the adult. Regarding 1,2 and 3:

( a ) 3 is correct but 1 and 2 are incorrect
( b ) All are incorrect
( c ) 2 is correct but 1 and 3 are incorrect
( d ) 1 is correct but 2 and 3 are incorrect

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