Comparing Systems of different Phylum – Porifera, Cnidaria, Ctenophora, Platyhelminthes, Nematoda, Arthropoda, Onychophora, Mollusca, Echinodermata, Hemichordata and Chordata.
Comparison of Systems of different Phylum
Here the table shows the Digestive system, Respiratory System, Reproductive system, Circulatory system, Nervous system, Excretory system and the locomotory organs exhibit by species of different Phylums.
Note:- D: Digestion ; R: Respiration; Asxl: Asexual reproduction; Sxl: Sexual reproduction; F: Fertilization; E: Excretion; O: Excretory organ; T: Terrestrial and W: Water/Aquatic.
| Phylum | Digestive System | Respiratory System | Reproductive System | Circulatory System | Nervous System | Excretory System | Locomotory organ |
| Porifera | Absent D: Intracellular | Absent R: Body surface | Asxl: Gemmule/Bud Sxl: Gametes Regeneration | Absent | Undeveloped | Absent E: Body surface | Absent |
| Cnidaria/ Coelenterata | Absent D: Intracellular & Extracellular | Absent R: Body surface | Asxl: External Budding Sxl: Gametes | Absent | Undeveloped | Absent E: Body surface | Tentacles |
| Ctenophora | Absent D: Intracellular & Extracellular | Absent R: Body surface | Asxl: Transverse fission Sxl: Gametes | Absent | Undeveloped | Absent E: Body surface | Ciliary comb plate |
| Platyhelminthes | Incomplete Anus absent D: Intracellular & Extracellular | Absent R: Body surface | Asxl: Transverse fission Sxl: Gametes Regeneration | Absent | Present Primitive Ladder like Brain,Nerves | Absent E: Body surface | Absent |
| Nematoda | Complete | Absent R: Body surface | Sexual Reproduction F: Internal | Absent | Present Nerve ring, longitudinal nerve cords | Present O: Renette gland | Absent |
| Annelida | Complete | Present R: Skin / gills | Sexual Reproduction F: Internal | Present Closed type vascular system | Present Cerebral ganglia Ventral Nerve | Present O: Nephridia | Setae / Parapodia |
| Arthropoda | Complete | Present R: Gills/ Trachea/ Book lungs | Sexual Reproduction F: Internal (T) /External (W) | Present Open type vascular system | Present Brain ganglionated ventral nerve | Present O: Malpighian tubule/ Coxal/Green gland | Jointed appendages |
| Onychophora | Complete | Present R: Trachea (stigmata) | Sexual Reproduction F: Internal | Present | Present Brain, sense organ, longitudinal peripheral nerve | Present O: Nephridia/ Pericardial cells | Legs |
| Mollusca | Complete | Present R: Ctenidia/ Pulmonary sac | Sexual Reproduction F: Internal / External | Present Open type vascular system | Present Primitive Brain, Nerve ring Pedal-visceral nerve | Present O: Kidney/ Nephridia/ Bojanus gland/Pericardial gland | Muscular foot |
| Echinodermata | Complete | Present R: Non sactorial tube feet | Sexual Reproduction F: External Regeneration | Present Haemal system | Present Central nerve ring, 5 radiating nerves | Absent | Tube feet |
| Hemichordata | Complete | Present R: Pharyngeal gill slit | Sexual Reproduction F: External | Present Closed type | Present Primitive type | Present O: Glomerulus / Proboscis gland | Probocis |
| Chordata | Complete | Present R: Skin, gills, lungs | Sexual Reproduction F: Internal | Present Closed type Hepatic portal systemt | Present | Present | Fins / limbs |