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प्रश्न
Answer in brief.
Write four distinguishing characters of phylum- Echinodermata.
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उत्तर
Characteristic features of Echinodermata are:
- they are called echinoderms because calcareous spines are present on the body of these animals.
- their skeleton is made up of calcareous spines/ossicles (plates).
- they show radial symmetry in adult stage whereas they show bilateral symmetry in larval stage.
- these animals have the ability of regeneration.
- they are found only in oceans.
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संबंधित प्रश्न
Identify me.
My body is radially symmetrical. Water vascular system is present in my body. I am referred as fish though I am not. What is my name?
Which of the following animals can regenerate it’s broken body part?
Sketch, labell and classify Star fish .
Identify the class of the animal shown in the figure and write any two characteristics.
Find an odd one out.
What are the locomotory organs of the animal given in the picture?

Write a short note.
Starfish
How does locomotion take place in starfish?
Hard calcium carbonate structures are used as skeleton by
______ separates the digestive tract from the body wall.
The locomotion of phylum Echinodermata is affected by ______.
Which group of animals belong to the same phylum?
Read the following statements.
- Metagenesis is observed in Helminths.
- Echinoderms are triploblastic and coelomate animals.
- Round worms have an organ-system level of body organization.
- Comb plates present in ctenophores help in digestion.
- Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.
Identify the following animal and answer the questions that follow.
- Name its phylum.
- Name any two other examples of this phylum.
- Mention any two characters of this phylum.

Cockroach, Frog, Sparrow, Starfish, from these animals which can regenerate its broken body part?
