In this article we will discuss about Pila Globosa:- 1. Habit and Habitat of Pila Globosa 2. External Features of Pila Globosa 3. Coelom 4. Digestive System 5. Respiratory Organs 6. Blood Vascular System 7. Excretory System 8. Nervous System 9. Sense Organs 10. Reproductive System 11. Copulation 12. Fertilisation 13. Development. Contents: Habit and Habitat of Pila Globosa External [...]
Get the answer of: How is the Pearl Formed ? Pearl is a valuable gem known to mankind since ancient times. The pearl, in fact, is of animal origin and produced by certain bivalves of Mollusca. The pearl producing bivalves are marine oysters of the genus Pinctada, though some freshwater bivalves of the genus Unio and Anodonta also produce pearl [...]
In this article we will discuss about Unio:- 1. Habit and Habitat of Unio 2. External Features of Unio 3. Internal Structures 4. Coelom 5. Locomotion 6. Respiratory System 7. Digestive System 8. Blood Vascular 9. Excretory System 10. Nervous System 11. Sense Organs 12. Respiratory System 13. Fertilisation 14. Development 15. Metamorphosis. Contents: Habit and Habitat of Unio External [...]