Biology

Difference between series protostomia and series deuterostomia

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

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 forms the anterior margin during development. 2. Mouth is formed at some distance anterior to the blastopore and the 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 the lips of the blastopore. 4. Mesoderm is derived from the wall of development (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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