Phylum Echinodermata MCQs

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1. What is the defining characteristic of Echinodermata?





2. Echinoderms are primarily found in which type of environment?





3. Which of the following is NOT a class within the phylum Echinodermata?





4. What structure do echinoderms use for locomotion?





5. The water vascular system in echinoderms is primarily used for:





6. Which of the following echinoderms is commonly known as a sea star?





7. Echinoderms have a unique type of body symmetry called:





8. Which of the following echinoderms is known for its elongated body?





9. What type of skeleton do echinoderms possess?





10. Which class of echinoderms is characterized by a central disk and long, flexible arms?





11. Echinoderms reproduce primarily through which method?





12. Which echinoderm is known for its ability to regenerate lost body parts?





13. The mouth of echinoderms is typically located on which side?





14. What type of feeding strategy do many echinoderms employ?





15. Which of the following is a major ecological role of echinoderms?





16. Which class of echinoderms is known for having a hard shell covered in spines?





17. What is the main function of tube feet in echinoderms?





18. Echinoderms belong to which major group of animals?





19. Which of the following structures helps echinoderms to sense their environment?





20. Which class of echinoderms is known for having a leathery body and a soft texture?





21. Echinoderms have a unique system for gas exchange that occurs primarily through:





22. What is the ecological significance of sea urchins in marine ecosystems?





23. Echinoderms are known to exhibit which of the following traits?





24. Which echinoderm is often used as a model organism in developmental biology?





25. The ability of echinoderms to regenerate lost arms is an example of:





26. Which class of echinoderms is characterized by a basket-like structure?





27. Echinoderms are important indicators of:





28. The term "echinoderm" literally means:





29. What do echinoderms primarily feed on?





30. Echinoderms exhibit a unique characteristic known as:





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