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27 Cards in this Set
- Front
- Back
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sessile
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otganism permanently attached to ground
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Cnidaria
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The only phylum to have spear like stinging nematocysts
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Scyphozoa
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class jellyfish belong to
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nerve net
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behavioral responce of hydra are due to its...
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medusa
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bell shaped and free swimming form of cnidarians
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cell specialization
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adapting of a cell for a particular use
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invertibrates
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95% animals
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class hydrzoa
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includes portuguse man of war
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# of germ layers cinarians have
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2
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collar cells
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cells that contain flagella to draw water into sponge
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epidermis
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outer layer which protects sponge
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gemmule
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bud covered by a hard protective layer
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osculum
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excurrent pore of sponge where water leaves
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Porifera
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sponge phylum
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germ layers
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true body layers from which organs adn organ systems are derived
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metazoma
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multicellular organisms with organized tissues
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bilateral symmatry
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left and right mirror each other
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budding
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type of asexual reproduction where a group of cells enlarge, break off, amd develop into an adult
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dinoflagellates
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algae that have a symbiosis assosiation with class anthazoa
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gastrovacular cavity
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stomach cavity of a hydra
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polyp
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cnidarian body form
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spicules
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STRUCTURES which act as a skeleton for the sponge
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basal disk
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group of cells in hydra that secretes a slimy, sticky substance for attaching to rocks adn plants
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anthozoa
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cnidarians that live only as polys
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colloblasts
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cells which secrete a sticky substance to capture prey
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2 advances of hydra over sponge
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mouth , stomach cavity
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ameboycytes function in:
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feeding, respiration, reproduction
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