Difference between Porifera and Arthropoda
Difference between Porifera and Arthropoda are in tabular form below –
No. |
Porifera |
Arthropoda |
1. | Organisms which are pore bearer, has no tissue, asymmetrical body and lives in marine environment, this is referred as Porifera. | The organisms or invertebrates which have jointed appendages, bilateral symmetry, open type of circulatory system and exoskeleton (External skeleton), this is referred as Arthropoda. |
2. | Symmetry of Porifera shows Asymmetrical body. | Symmetry of Arthropoda shows Bilateral symmetry. |
3. | Digestive cavity is absent and collar cells are present for the phagocytosis in the organisms of Porifera. | Complete digestive system is present which starts from mouth and ends to anus in the organisms of Arthropoda. |
4. | Segmentation and cephalization is absent in the organisms of Porifera. | Segmentation and cephalization is present in the organisms of Arthropoda. |
5. | Muscles are absent here. | Muscles are present with the tendons. |
6. | Organisms of Porifera shows cellular level of organization. | Organisms of Arthropoda shows organ system level of organization. |
7. | Following are the classes of Porifera: Hexactinellida, Calcarea, Demospongiae, and Sclerospongiae. | Following are the classes of Arthropoda: Trilobita, Myriapoda, Chelicerata, Hexapoda and Crustacea. |