Biology

Difference between Series Proterostomia and Series Deuterostomia

The Major Difference between Series protostomia and Series Deuterostomia is that Series protostomia is a spiral division of the zygote, mouth arises from the blastopore while Series Deuterostomia is radial cleavage and Mouth is formed at some distance anterior.

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Series protostomia

Series Deuterostomia

1. Cleavage or division of the zygote is spiral or determinate. 1. Cleavage is radial and indeterminate.
2. The mouth arises from the blastopore or form anterior margin during development. 2. Mouth is formed at some distance anterior to the blastopore and blastopore forms the anus during development.
3. Coelom or body cavity is formed by the splitting of the mesoderm. This condition is called Schizocoelous. 3. Coelom is developed as an outpouching of the archenterons. This condition is called Enterocoelous.
4. Mesoderm is derived from the cells on lips of blastopore. 4. Mesoderm is derived from wall of developing (Archenteron).
5. This series Proterostomia includes animals belonging to phyla Aschelminthes (Nematoda) Annelida, Mollusca and Arthropoda. 5. This series includes animals belonging to Echinodermata, Hemichordata and Chordata.

Difference between Series protostomia and Series Deuterostomia

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