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Questions and Answers
Which subclass includes earthworms and many freshwater worms?
Which subclass includes earthworms and many freshwater worms?
- Class Polychaeta
- Subclass Oligochaeta (correct)
- Subclass Hirudinea
- Class Clitellata
What is the specialized gut in leeches used for?
What is the specialized gut in leeches used for?
- Excreting waste
- Respiration
- Digesting food
- Storing large amounts of blood (correct)
What is the function of the clitellum during mating?
What is the function of the clitellum during mating?
- Facilitating respiration
- Secreting mucus to hold two worms together (correct)
- Protecting the body from predators
- Producing eggs for reproduction
Which subclass of annelids is dorso-ventrally flattened with suckers at both ends?
Which subclass of annelids is dorso-ventrally flattened with suckers at both ends?
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What is a characteristic feature of subclass Oligochaeta?
What is a characteristic feature of subclass Oligochaeta?
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