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14 Cards in this Set
- Front
- Back
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What are the five classes of cnidarians and their identifying characteristics? |
Anthozoa- Coral, Scyphozoa- Jellyfish, Staurozoa- Stalked Jellyfish, cubozoa- Box Jellyfish, hydrozoa- Hydroids |
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What phylum do sea sponges belong to? |
They belong to porifera |
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What is a choanocyte, what is it for? |
a flagellated cell with a collar of protoplasm at the base of the flagellum. They line the internal chambers of sponges. |
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What is a spicule? What is for? Where are they made? |
It is the structural make up of sponges. Provide structural support and deter predators. They are made by scleraocytes. |
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What 3 cell types make up a sponge? |
1- Choanocytes 2- Choanoflagellates 3- Microvilli |
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What phylum are sea walnuts a member of? |
Ctenphora |
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What are the comb rows in ctenophora for? |
They are used to bite gelatinous prey |
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What is the life cycle of a cnidarian? |
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What is a planula? |
a free-swimming coelenterate larva with a flattened, ciliated, solid body. |
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What is a nematocyst? Cnidocyst? |
a specialized cell in the tentacles of a jellyfish containing a barbed or venomous coiled thread that can be projected in self-defense or to capture prey. Is an explosive cell containing one giant secretory organelle or cnida that defines the phylum Cnidaria |
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Are cnidarians sexual or asexual, explain? |
Cnidarians are both sexual and asexual |
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Differences in gastrodermis/epidermis. |
gastrodermis lines the gut cavity and the epidermis is the protective outer layer |
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Sketch a simple drawing and identify the structures of Aurelia. |
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Sketch a simple drawing and identify the structures of a sponge. |
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