Phylum Cnidaria: Classes Hydrozoa, Scyphozoa, Cubozoa

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What is the Genus name for Moon jelly?

Aurelia

Class _______ are true jellyfish. Jellyfish start out as a bottom dwelling _____ and then mature into a free-swimming _________.

Class Scyphozoa are true jellyfish. Jellyfish start out as a bottom dwelling polyp and then mature into a free-swimming medusa.

Class __________ alternates between the polyp and medusa stage but the ______ stage is dominant

Class hydrozoa alternates between the polyp and medusa stage bu the polyp stage is dominant

What are the 3 types of zooids found in colonial hydroids and what are their functions?

zooids: individual polyps differentiated for different functions gastrozooids: feeding Dactyloxoids:capture prey/defense Gonozooids: reproduction phenumatophore at top, wind pushes animal through water

Why are box jelly's not found in the same class as other jellyfish?

appearance, severity of toxins (they also feed on plankton)

What organisms are found in Class Cubozoa?

box jellies

What is fire coral?

colonial hydroids, can sting, waxy, yellow appearance and grows in colonies, more closely related to jellyfish than coral, sharp, calcified, external skeleton that can scrape the skin

What is a siphonophore?

longest animal in the world, represent a mix between colonial animals and complex


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