In this article we will discuss about of Polygordius:- 1. External Structures of Polygordius 2. Body Wall and Coelom of Polygordius 3. Digestive System 4. Circulatory System 5. Excretory System 6. Nervous System 7. Reproductive System. External Structures of Polygordius: The body of polygordius is slender, elongated, cylindrical and measures about 2-10 cm in length […]
An Example of Phylum Annelida: Polygordius
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An Example of Phylum Annelida: Leech
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In this article we will discuss about Leech:- 1. Habit and Habitat of Leech 2. External Structures of Leech 3. Body Wall 4. Coelom 5. Locomotion 6. Digestive System 7. Respiratory System 8. Circulatory System 9. Excretory System 10. Nervous System 11. Receptor Organs 12. Reproductive System. Contents: Habit and Habitat of Leech External Structures […]
3 Important Members of Phylum Annelida
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List of three important members of Phylum Annelida:-1. Polychaetes 2. Oligochaetes 3. Hirudinea. Member # 1. Polychaetes: This group includes heterogeneous forms where variation is marked not only in size but also in habits and structural organisation. Following examples will illustrate the range of diversities: Arenicola: Burrows in sand; body is distinctly divisible into three […]
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