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Kingdom Animalia - Phylum Echinodermata - (Spiny Skinned Animals) | 9th Science : Living World of Animals - Diversity in Living Organism - Kingdom Animalia

Chapter: 9th Science : Living World of Animals - Diversity in Living Organism - Kingdom Animalia

Phylum Echinodermata - (Spiny Skinned Animals)

The mouth is on the lower surface. Water vascular system is a unique feature of these animals.

Phylum Echinodermata - (Spiny Skinned Animals)

They are exclusively marine organisms and the adults are radially symmetrical, but the larvae remain bilaterally symmetrical. They have an exoskeleton with calcareous ossicles, presence of external spines called Pedicellaria. The mouth is on the lower surface. Water vascular system is a unique feature of these animals. Tube feet is involved in locomotion. The most common larva is a bipinnaria larva.




Tags : Kingdom Animalia , 9th Science : Living World of Animals - Diversity in Living Organism - Kingdom Animalia
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9th Science : Living World of Animals - Diversity in Living Organism - Kingdom Animalia : Phylum Echinodermata - (Spiny Skinned Animals) | Kingdom Animalia


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