Archive | 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: Achatina

In this article we will discuss about Achatina:- 1. Distribution of Achatina 2. Habit and Habitat of Achatina 3. External Structures 4. Coelom 5. Digestive System 6. Locomotion 7. Respiratory System 8. Circulatory System 9. Excretory System 10. Nervous System 11. Reproductive System 12. Development. Contents: Distribution of Achatina Habit and Habitat of Achatina External Structures of Achatina Coelom of [...]

By |2016-05-27T11:33:50+00:00May 27, 2016|Phylum Mollusca|Comments Off on An Example of Phylum Mollusca: Achatina

An Example of Phylum Mollusca: Sepia

In this article we will discuss about Sepia:- 1. Habit and Habitat of Sepia 2. External Structures of Sepia 3. Coelom 4. Digestive System 5. Locomotion 6. Respiratory System 7. Circulatory System 8. Excretory System 9. Nervous System 10. Reproductive System 11. Development. Habit and Habitat of Sepia: Sepia is a typical representative of the class Cephalopoda. Members of this [...]

By |2016-05-27T11:33:50+00:00May 27, 2016|Phylum Mollusca|Comments Off on An Example of Phylum Mollusca: Sepia
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