Fill in the table “The main fish organs and their belonging to a particular organ system” and draw a conclusion
| October 30, 2020 | Education
| Body name | The name of the organ system to which it belongs |
| Gills | Respiratory |
| Stomach | Digestive |
| Intestines | Digestive |
| Liver | Digestive |
| A heart | Circulatory |
| Testes or ovaries | Sexual |
| Kidney | Excretory |
Conclusion: fish are developed animals that have a spine formed at the site of the notochord. The fish have well-developed respiratory, circulatory, excretory and reproductive systems.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.