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Question
Which of the following echinoderm is not marine?
Which of the following echinoderm is not marine?
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Solution
The correct option is A None of the above
Sea lily is a marine invertebrate animal. It belongs to the class Crinoidea and phylum Echinodermata. The adult organism is fixed to the sea bottom by a stalk. Star fish is commonly known as sea star. The organism is found in deep sea waters. The organism has a disc like body with arms. They have tube feet which help in locomotion under water. Sea cucumbers are the marine organisms which belongs to the class Holothuria. They have long cylindrical body which is warty and dark in colour. The structure resemble to cucumber.Thus, the correct answer is option D.
Sea lily is a marine invertebrate animal. It belongs to the class Crinoidea and phylum Echinodermata. The adult organism is fixed to the sea bottom by a stalk.
Star fish is commonly known as sea star. The organism is found in deep sea waters. The organism has a disc like body with arms. They have tube feet which help in locomotion under water.
Sea cucumbers are the marine organisms which belongs to the class Holothuria. They have long cylindrical body which is warty and dark in colour. The structure resemble to cucumber.
Thus, the correct answer is option D.
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