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Phylum – Echinodermata : Match the following and choose the most appropriate option:

A. Sexes 1. direct
B. Fertilisation 2. external
C. Development 3. indirect
4. internal
5. not separate
6. separate

( A ) A-6; B-2; C-3
( B ) A-5; B-4; C-3
( C ) A-6; B-2; C-1
( D ) A-5; B-4; C-1
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(A) is the right answer.

Phylum – Echinodermata : Sexes are separate. Reproduction is sexual. Fertilisation is usually external. Development is indirect with free-swimming larva.
answered Apr 2, 2014 by pady_1
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