Protostomes
Proto’ means first and ‘stomes’ means mouth. Protostomes meaning the animals in which Blastopore forms the mouth first and then the anus. Blastopore is an opening seen during the gastrula stage for the movement of cells and is responsible for the formation of the mouth and anus. In Protostomes, a solid and ventral nerve cord is present. They exhibit determinate and spiral cleavage.
Protostomes Examples
Protostomes includes animals belonging to lower invertebrates like Annelida, Arthropoda, and Mollusca.
- Anthropoda – Butterflies, insects, crabs, and shrimps
- Annelida – Leeches, earthworms
- Mollusca – Octopus, snails, clams
Difference Between Protostomes and Deuterostomes
The key difference between Protostomes and Deuterostomes lies in the development of their embryonic cells, with protostomes forming the mouth first during embryogenesis, while deuterostomes develop the anus first. Protostomes and Deuterostomes are two types of organisms with tubes within a tube body plan
The major difference between these two is based on the fate of Blastopore. In this article, we will cover the difference between Protostomes and Deuterostomes.
Table of Content
- Protostomes
- Deuterostomes
- Tube Within Tube Body Plan
- Differences Between Protostomes And Deuterostomes:
- Conclusion – Difference Between Protostomes And Deuterostomes
- FAQs on Difference Between Protostomes And Deuterostomes
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