Question

state six distinguishing character oh phylum echinodermata​

Answer 1

❥︎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 shape.

❥︎hope it helps u sis

Answer 2

Answer:

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Explanation:

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The animals of phylum echinodermata have an endoskeleton of calcareous ossicles and, hence, the name Echinodermata.

All are marine with organ-system level of organization, the adult echinoderms are radially symmetrical but larvae are bilaterally symmetrical, triploblastic and coelomate animals.

Digestive system is complete, excretory system is absent.

Water vascular system, the most distinctive feature, helps in locomotion, capture and transport of food and respiration.

Sexes are separate, reproduction is sexual, fertilisation is usually external and development is indirect with free-swimming larva.

Examples-Asterias (Star fish), Echinus (Sea urchin).