Question

what is metagenesis in cnidaria ?????​

Answer 1

Answer:

Some cnidarians exist in polyp and medusa forms. Such cnidarians show metagenesis. It is the phenomenon of alternation of generations in which polyps produce medusae asexually and medusae produce polyps sexually.

Answer 2

Answer:

Megasthenes was an ancient Greek historian, diplomat and Indian ethnographer and explorer in the Hellenistic period. He described India in his book Indika, which is now lost, but has been partially reconstructed from literary fragments found in later authors