Question

What are the saline features of phylum echinodermata

Answer 1

Explanation:

Characteristic Features of Phylum::-

Echinodermata

These are exclusively marine animals.

The larval forms show bilateral symmetry and adult forms show radial symmetry.

They are triploblastic.

It exhibits organ system grade of organisation.

They have a true coelom.

The body is uniquely shaped.

Answer 2

Echinodermata

• They are exclusively marine and have Organ system level of organization.
• They have spiny body with exoskeleton of ossicles.
• They are radially symmetrical and bilaterally symmetrical.
• Digestive system is complete.
• Exchanges of gases occurs through water vascular system.
• They don't have special excretory structure.
• Sexes are separate with sexual reproduction.
• Fertilization is external and development also external.
• They have water vascular system for food collection and transport.
• Example :- Ophiura, Cucumaria, Echinus, Antedon.

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