OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cephalization
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Deuterostome
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Complete Digestion
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Tube feet
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Detailed explanation-1: -So, the correct answer is ‘Endodermal skeletal system’.
Detailed explanation-2: -So, the correct answer is ‘Endodermal skeletal system’.
Detailed explanation-3: -Characteristics of Echinodermata 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.
Detailed explanation-4: -Echinoderms do not present cephalization. They have a diffuse network of nerves and neurons made of a neural ring around the mouth and radial nerves that split off into branches to follow the pentaradial structure of the body.
Detailed explanation-5: -The most notable characteristic of echinoderms is their radial symmetry, with several arms (usually 5 or more) radiating from a central body. Echinoderms lack a heart, brain, and eyes, but do have a mouth and anus.