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Protostomes Deuterostomes
1.Mouth develops first then anus 1. Anus develops first then mouth
2.Blastopore develops into mouth 2.Blastopore develops into anus
3.Coelom absent and a schizocoel 3. Coelom develops as enterocoel by fusion
develops by a split of mesoderm of gut pouches.
4.Cleavage is spiral and determinate 4. Cleavage is radial and indeterminate.
5.Larva is trochophore. 5. Larva is bipinnaria or tornaria
6.E.g. Molluscs, annelida & 6.E.g. Echinodermata & Chordata
arthropodes
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoBasically, the difference is whether the first pore the embryo develops is the mouth (protostomes) or the anus (deuterostomes). There are other developmental and anatomical developments that are related to each type. Some are listed at the site: http://www.cartage.org.lb/en/themes/sciences/zoology/Animalclassification/Polygenetic/Protostome/ProtostomeDeuterostome/ProtostomeDeuterostome.htm
Wiki User
∙ 14y agothe fate of their baltspores, cleavage and coelom formation
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Coelomates that develop with the blastopore becoming the mouth are protostomes. An example of a protostome would be the Caribbean reef squid.
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