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Questions and Answers
What is the main difference between polyp and medusa body forms in Cnidaria?
What is the main difference between polyp and medusa body forms in Cnidaria?
- Polyps reproduce sexually by gametes, whereas medusas reproduce asexually by budding.
- Polyps have a cylindrical body with a long stalk, whereas medusas have an umbrella-shaped body with a reduced stalk.
- Polyps are free-swimming while medusas are attached to rocks.
- Polyps have a complex gastrovascular cavity with radial and circular canals, while medusas have a simple gastrovascular cavity. (correct)
Which class of Cnidaria always has the polyp body form?
Which class of Cnidaria always has the polyp body form?
- Medusozoa
- Hydrozoa
- Scyphozoa
- Anthozoa (correct)
What is the key feature of the gastrovascular cavity in medusas?
What is the key feature of the gastrovascular cavity in medusas?
- Simple structure with radial and circular canals
- Lack of radial or circular canals (correct)
- Presence of four gonads on radial canals
- Asexual reproduction by budding
In which class of Cnidaria do symptoms like burning, itching, and numbness occur?
In which class of Cnidaria do symptoms like burning, itching, and numbness occur?
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What is the purpose of the long stalk present in polyps?
What is the purpose of the long stalk present in polyps?
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Which body form in Cnidaria is more concerned with sexual reproduction?
Which body form in Cnidaria is more concerned with sexual reproduction?
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What are the typical symptoms associated with Scyphozoa class in Cnidaria?
What are the typical symptoms associated with Scyphozoa class in Cnidaria?
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Which body form in Cnidaria involves a more complex reproductive process?
Which body form in Cnidaria involves a more complex reproductive process?
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What distinguishes the reproductive process between polyps and medusas in Cnidaria?
What distinguishes the reproductive process between polyps and medusas in Cnidaria?
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