What is a blastopore, and how is it used to indicate evolutionary relationships?

1 Answer
Dr Birendra Kumar Mishra
Nov 17, 2016

Significance of developing an anus from blastopore is reflected by the success of these two clades.

Explanation:

The embryological origin of the mouth and anus is an important characteristic features of the animal embryogeny. Originally, It was thought that the blastopore of the protostome formed the mouth and the anus was formed. But these are an unrelated lineage. Significance of developing an anus from blastopore is reflected by the success of these two clades. Thank

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