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Characters of a Phylum Are Given Below. Read Those Carefully and Answer the Questions. - Science and Technology 2

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Characters of a phylum are given below. Read those carefully and answer the questions.
a. Spines of calcium carbonate are present on the body.
b. These animals are exclusively marine.
c. They perform the locomotion with the help of tube feet.
d. Their skeleton is made up of calcareous plates or spicules.
i. Animals of which phylum show the above characters?
ii. Give an example from that phylum.
iii. These animals can be classified with the help of which criteria of new system of animals classification?

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Solution

i. Above mentioned characters are of phylum-Echinodermata.
ii.Sea star is an example of this phylum.
iii.In new system of classification, these animals classified with the help of criteria like-body organization, body symmetry, body cavity,etc.

Concept: Biological Classification
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