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Questions and Answers
What type of symmetry do echinoderms exhibit in their adult stage?
What is the primary function of the tube feet in echinoderms?
Which of the following statements about echinoderms is true?
What is a notable ability of echinoderms related to their physical structure?
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Which of the following is NOT an example of an echinoderm?
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Study Notes
Echinoderm Characteristics
- Echinoderms have calcareous spines on their bodies, giving them their name.
- They are exclusively found in the ocean.
- Adults exhibit radial symmetry, with body parts arranged around a central axis.
- Larval stages, on the other hand, display bilateral symmetry.
- Locomotion is achieved through tube feet, used for movement and capturing prey.
- They possess a skeleton composed of calcareous spines and/or ossicles (plates).
- Echinoderms have remarkable regenerative capabilities.
- They are mostly unisexual.
- Examples include starfish, sea urchins, brittle stars, and sea cucumbers.
Additional Information
- Hemichordata are considered a transitional group between non-chordates and chordates.
- Starfish can regenerate lost parts, sometimes even breaking apart their bodies to regenerate later.
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Description
Explore the fascinating world of echinoderms through this quiz, which highlights their unique features such as radial symmetry, calcareous structures, and remarkable regenerative abilities. Test your knowledge of their locomotion methods, reproductive traits, and examples like starfish and sea urchins.
