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12 Cards in this Set
- Front
- Back
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Five classes of cnidarians? |
Anthozoa, hydrozoa, scyphozoa, cubozoa, staurozoa. |
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What phylum are sea sponges from? |
Porifera |
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What is a choanocyte? |
flagellated cell with a collar of protoplasm at the base of the flagellum. Used to create water flow through the body of a sponge. Allows nutrients to filter through and feed the sponge. |
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What is a spicule? |
A small hard structural element found in most sponges. Made of calcium carbonate and silica. |
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What are the 3 types of cells that make up a sponges body? |
pinacocytes, amoebocytes, choanocytes. |
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what phylum are sea walnuts from? |
Ctenophora phylum. |
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what are comb rows used for? |
Used for locomotion. |
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Life cycle of a cnidarian? |
Have a life cycle of two forms. One is free swimming jellyfish medusa stage and the second is an attached polyp stage. |
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What are planula? |
Free swimming/crawling larvae common in many species of the phylum cnidaria. Cylindrical or egg shaped and have many cilia for locomotion. |
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Nematocyst? Cnidocyst? |
Specialized cells located in the tentacles of a jelly fish which contain cnidoblast used for defense and capturing prey. |
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Cnidaria reproduction? |
Sexually and asexually |
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What is the difference between epidermis and gastrodermis? |
Epidermis is the outer layer of tissue and gastro is the inner layer. |
