OESOPHAGUS STOMACH
ECHINODERMS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Arthropods
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Worms
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Mollusks
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Echinoderms
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Detailed explanation-1: -The echinoderms (Greek for spiny skin) include sea stars, sea urchins, feather stars, brittle stars and sea cucumbers. All are found in the marine environment in a range of habitats from intertidal surf beaches to the deepest oceans.
Detailed explanation-2: -Echinoderms are named for the spines or bumps covering the outer surface of the bodies of many of them (Greek root word echino-meaning spiny; Latin root word-derm meaning skin). Examples of echinoderms include sea stars, sea urchins, sea cucumbers, brittle stars, and feather stars (Fig. 3.83).
Detailed explanation-3: -Sea cucumbers are part of a larger animal group called echinoderms, which also contains starfish and sea urchins. Their body shape is similar to a cucumber, but they have small tentacle-like tube feet that are used for locomotion and feeding.
Detailed explanation-4: -Overview. Sea stars are invertebrates related to sea urchins, sea cucumbers and sand dollars, which are all echinoderms. Echinoderm means spiny skin-a reference to their hard, calcified skin, which helps to protect them from predators.
Detailed explanation-5: -Starfish are echinoderms, related to sea urchins and sea cucumbers.