| 1. | The nudibranch places the egg case on the branches of hydrozoa.
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| 2. | Medusae of these species of Hydrozoa are known as " hydromedusae ".
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| 3. | This responsibility led her to analyze other algae, archaeocyathids, and hydrozoa.
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| 4. | His contributions included the description of several dozen species of Hydrozoa new to science.
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| 5. | They feed on hydrozoa growing on the alga.
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| 6. | Hydrozoa have a variety of life cycles.
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| 7. | Many species can change colour; some are covered with other organisms such as algae or hydrozoa.
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| 8. | "' Candelabridae "'is a small family of cnidarians within the class Hydrozoa.
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| 9. | The class Storozoa was the earliest group of Medusozoa to diverge and the Limnomedusae were the earliest Hydrozoa to diverge.
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| 10. | Fire corals are not true corals, being in the order Anthomedusa ( sometimes known as Anthoathecata ) of the class Hydrozoa.
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