Difference between Porifera and Annelida
Difference between Porifera and Annelida are in tabular form below –
No. |
Porifera |
Annelida |
1. | Organisms which are pore bearer, has no tissue, asymmetrical body and lives in marine environment, this is referred as Porifera. | Organisms which have segmented body and are separated by internal walls between each segment or Septa, sometimes known as bristle worms, this is referred as Annelida. |
2. | Organisms of Porifera have asymmetrical body. | Organisms of Annelida have Bilaterally symmetrical body. |
3. | Organisms of Porifera contains pores body. | Organisms of Annelida contains segmented body. |
4. | Both mouth and anus are absent in the organisms of Porifera. | Both mouth and anus are present in the organisms of Annelida. |
5. | Circulation in the organisms of Porifera takes place with the help of diffusion. | Circulation in the organisms of Annelida takes place with the help of closed blood vessels. |
6. | Organisms of Porifera do not contain coelom. | Organisms of Annelida contains true coelom. |
7. | Tissue layers in and embryo is not applicable here. | Three types of tissue layers are present in an embryo: Endoderm, mesoderm and Ectoderm. |