How reproduction occurs in phylurm Echinodermata?

1.	How reproduction occurs in phylurm Echinodermata?
Answer» (i) Sexes are separate with no sexual dimorphism. (ii) Fertilization is generally external. (iii) Development includes ciliated, bilaterally symmetrical larva, which is usually free swimming and undergoes conspicuous metamorphosis. (iv) A few forms reproduce asexually by division. (v) Autotomy and regeneration are very common.

Answer»

(i) Sexes are separate with no sexual dimorphism.

(ii) Fertilization is generally external.

(iii) Development includes ciliated, bilaterally symmetrical larva, which is usually free swimming and undergoes conspicuous metamorphosis.

(iv) A few forms reproduce asexually by division.

(v) Autotomy and regeneration are very common.

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