OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Star brittle, sea urchins, sea horse, sea cucumber, starfish
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Starfish, sea urchin, star brittle, sea cucumber, feather star
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Fish, sea brittle, sea urchin, sea horse, sea cucumber, starfish
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None of the above
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Detailed explanation-1: -The phylum echinoderms is divided into five extant classes: Asteroidea (sea stars), Ophiuroidea (brittle stars), Echinoidea (sea urchins and sand dollars), Crinoidea (sea lilies or feather stars), and Holothuroidea (sea cucumbers).
Detailed explanation-2: -Today, Echinodermata is a diverse phylum, with numerous species in five classes: Asteroidea (star fish), Crinoidea (sea lilies and feather stars), Echinoidea (sea urchins and sand dollars), Holothuroidea (sea cucumbers), and Ophiuroidea (brittle stars).
Detailed explanation-3: -They have a star-like appearance and are spherical or elongated. They are exclusively marine animals. The organisms are spiny-skinned. They exhibit organ system level of organization. They are triploblastic and have a coelomic cavity. The skeleton is made up of calcium carbonate. More items