Not all make the anus first.[0] > The key difference between Protostomes and Deuterostomes is that in protostomes blastopore becomes the mouth while in deutero

Not all make the anus first.[0] > The key difference between Protostomes and Deuterostomes is that in protostomes blastopore becomes the mouth while in deuterostomes it becomes the anus. But yes, for humans it's the anus ;) 0) https://www.differencebetween.com/difference-between-protostomes-and-vs-deuterostomes/ https://www.differencebetween.com/difference-between-protost...