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dalvyx [7]
2 years ago
15

There are 7,000 species of echinoderms, all of which are marine, move slowly, and have a bumpy or spiky surface. Drag the functi

ons to the echinoderm structures highlighted in the sea star.
Biology
1 answer:
Ne4ueva [31]2 years ago
8 0

Sea stars are members of class Asteroidea and are the most well known members of Echinoderms.

<h3></h3><h3>What are the characteristics of Sea stars?</h3>
  • The sea stars, or members of the class Asteroidea, are among the most well-known echinoderms.
  • There are more than 1,800 species of them, and they come in a wide range of sizes, colors, and shapes.
  • Five thick arms that stretch from a central disk where organs penetrate the arms are one of the features of sea stars that distinguish them from other echinoderm classes.
  • Sea stars utilize their tube feet to hold prey as well as to grip surfaces. They can evert one of their two stomachs, which they have, through their mouths to exude digestive juices into or onto prey before absorption.
  • Sea stars have two stomachs. By effectively liquefying the prey, this procedure helps facilitate digestion.

<h3>What are the functions of echinoderms highlighted in Sea stars? </h3>
  • Like other echinoderms, Sea stars are radially symmetrical with pentamerous radial symmetry, coelomate, triploblastic and have organ-system level of organization.
  • Pedicellariae are present.
  • Calcareous endoskeleton made of ossicles is present that gives them a spiny appearance.
  • Water Vascular System is present which is the most distinctive features of echinoderms.

learn more about echinoderms- brainly.com/question/13048917

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