Tag Archives | Phylum Mollusca

Respiratory Organs in Unio and Pila| Phylum Mollusca

Learn about the comparison between respiratory organs of Unio and Pila. Comparison # Unio: 1. Modes of respiration in Unio is aquatic. 2. Respiratory organs in Unio are primarily the gills. Highly vascu­lar mantle also acts as an accessory respiratory structure. 3. Two highly developed symmetrical gills are situated one on each side of the body of Unio. 4. Structure [...]

By |2016-05-27T11:34:10+00:00May 27, 2016|Phylum Mollusca|Comments Off on Respiratory Organs in Unio and Pila| Phylum Mollusca

Foot of Phylum Mollusca: Origin, Structure and Modifications

Meaning and Origin of Foot: Phylum Mollusca is characterised by the pronounced development of musculature known as the foot. It is the locomotory organ in Molluscs. This organ is quite uncommon and strange to others. It is regarded as the remnant of the 'dermo-muscular tube' of the ancestral form whose ventral side became greatly developed as an adaptation for creep­ing [...]

By |2016-05-27T11:34:09+00:00May 27, 2016|Phylum Mollusca|Comments Off on Foot of Phylum Mollusca: Origin, Structure and Modifications

An Example of Phylum Mollusca: Pila Globosa

In this article we will discuss about Pila Globosa:- 1. Habit and Habitat of Pila Globosa 2. External Structures of Pila Globosa 3. Coelom 4. Digestive System 5. Locomotion 6. Respiratory System 7. Circulatory System 8. Excretory System 9. Nervous System 10. Reproductive System 11. Development. Contents: Habit and Habitat of Pila Globosa External Structures of Pila Globosa Coelom of [...]

By |2016-05-27T11:34:09+00:00May 27, 2016|Phylum Mollusca|Comments Off on An Example of Phylum Mollusca: Pila Globosa
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