It is developed at the time of gastrulation. Hint: Blastopore is the opening of archenteron which is mouth like. Animals II: The Protostomes and Deuterostomes - Unit 19 During the development of the gut, protostomes first develop the mouth from the dent, blastopore This cell develops into a normal (though possibly smaller) embryo The coelomate protostomes include two lineagesone group includes echiurans, annelids, pogonophorans, onychophorans and. What is a blastopore and where it is found?Īnswer. The space that forms during this time is the primitive gut, the archenteron. The blastopore will eventually become either the mouth or the anus. The blastopore is the first opening in the embryo – the point of invagination during gastrulation. 4 1 It is now known that the fate of the blastopore among protostomes is. Now, we have got the complete detailed explanation and answer for everyone, who is interested!ĭuring which stage of embryonic development is the blastopore formed?īlastopore, the opening by which the cavity of the gastrula, an embryonic stage in animal development, communicates with the exterior. The protostomes (from Greek - prto- 'first' + stma 'mouth') were so named because it was once believed that in all cases the embryological dent formed the mouth while the anus was formed later, at the opening made by the other end of the gut. This is a question our experts keep getting from time to time.
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