Circulatory System in Molluscs
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Questions and Answers

What type of circulatory system do cephalopods have?

  • Closed circulatory system (correct)
  • Semi-closed circulatory system
  • Dual circulatory system
  • Open circulatory system

    • How many pairs of main nerve cords do most molluscs have?

  • One pair
  • Two pairs (correct)
  • Four pairs
  • Three pairs

    • Which type of fertilization do land snails primarily use?

  • External fertilization
  • Internal fertilization (correct)
  • Self-fertilization
  • Asexual reproduction

    • What is the primary function of the sensor-containing tentacles in molluscs?

    <p>To detect chemicals, vibrations, and touch</p> Signup and view all the answers

    What is the approximate incubation period for snail eggs to hatch?

    <p>2-4 weeks</p> Signup and view all the answers

    How many eggs can a snail produce at once?

    <p>Up to 100 eggs</p> Signup and view all the answers

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