write characteristics of phylum mollusca
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☆ The body is divided into head, muscular foot and visceral mass.
☆ The body is covered by a mantle and a shellRespiration: by gills (ctinidia) in the mantle cavity. lungs in terrestrial forms
☆ Digestive system: Complete and developed
☆ Circulatory system: Closed typeHeart consists of one or two auricle and one ventricle
☆ Excretion: pair of Metanephridia (Kidney)
☆ Nervous system: consists of three pair of ganglia (cerebral, visceral and pedal)
☆ Sexes: Dioecious and few are hermaphrodite
☆ Reproduction: gamatic fusion
☆ Fertilization: external or internal
_____________________________________________
☆ The body is divided into head, muscular foot and visceral mass.
☆ The body is covered by a mantle and a shellRespiration: by gills (ctinidia) in the mantle cavity. lungs in terrestrial forms
☆ Digestive system: Complete and developed
☆ Circulatory system: Closed typeHeart consists of one or two auricle and one ventricle
☆ Excretion: pair of Metanephridia (Kidney)
☆ Nervous system: consists of three pair of ganglia (cerebral, visceral and pedal)
☆ Sexes: Dioecious and few are hermaphrodite
☆ Reproduction: gamatic fusion
☆ Fertilization: external or internal
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✔️✔️ ANSWER ✔️✔️
✔️✔️ CHARACTERISTICS OF MOLLUSCA ✔️ ✔️
SECOUND LARGEST PHYLUM
ORGAN SYSTEM LEVEL OF ORGANISATION
BILATERAL SYMMETRY
THEY ARE TRIPLOBASTIC AND COELOMAT
SPONGY LAYER IS PRESENT
I HOPE THIS INFO HELPS YOU ☺️☺️☺️☺️☺️
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