Class 11 · Animal Kingdom

Echinoderm Examples and Classification — NEET Biology

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Examples: Asterias (Star fish), Echinus (Sea urchin), Antedon (Sea lily), Cucumaria (Sea cucumber) and Ophiura (Brittle star).

🖼️Related NCERT figure: Two echinoderms shown - (a) a star fish with five arms arranged radially, and (b) a brittle star with a central disc and long thin arms (Figure 4.14 Examples of Echinodermata : (a) Asterias (b) Ophiura)
NCERT Biology · Class 11 · Chapter 4 · Paragraph 33
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QuestionPractice Question

Match the following arthropod examples with their characteristic features or biological roles: Column I (Arthropod Example) A. Apis (Honey bee) B. Limulus (King crab) C. Bombyx (Silkworm) D. Anopheles (Mosquito) E. Prawn Column II (Category/Feature) i. A vector insect with tracheal system for respiration ii. An economically important insect that produces silk iii. Known as a living fossil, utilizes gills for respiration iv. An economically important insect that produces honey v. An aquatic arthropod whose respiratory organs include gills

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