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30 Cards in this Set
- Front
- Back
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What is an osculum? (Sponge)
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It is a hole in a sponge.
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What is a choanocytes? (Sponge)
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specialized cells that use flagella to move a steady current of water through the sponge
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What is a sessile? (Sponge)
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It doesn't have the ability to move.
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What is a nematocyst?
(Cnidarians) |
poison filled, stinging structures that contain a coiled dart
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What is a gastrovascular cavity? (Cnidarians)
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digestive chamber with one opening
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What is a nerve net? (Cnidarians)
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loosely organized network of nerve cells that together allow cnidarians to detect stimuli
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Hydrostatic skeleton (Cnidarians)
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layer of circular muscles and a layer of longitudinal muscles
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Jet Propulsion (Cnidarians)
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squeezing of water out to move forward
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Aortic Arches (Worms)
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underdeveloped hearts
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Flame cells (worms)
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cells to remove excess water from the body
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Nephridia (Worms)
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eliminates nitrogen containing wastes
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Eyespots (Worms)
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spots that detect changes in light
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Ganglia (Worms)
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mass of nerve cells
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Trochophore Larvae (worms)
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free swimming larvae
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Radula (mollusks)
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tongue with teeth for eating
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Tube Feet (Echinoderms)
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provide main surface for respiration
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Molt (Athropods)
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when they shed their exoskeleton
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Echinoderm symmetry
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five part radial
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Athropod symmetry
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bilateral
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Mollusk symmetry
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bilateral
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Cnidarian symmetry
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radial
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Worm symmetry
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bilateral
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Cnidarian examples
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jellyfish, sea anemones, hydras, etc.
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Worm examples
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leeches, earthworms, nereis, etc.
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Mollusk examples
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snails, slugs, chitons, etc.
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Echinoderm examples
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starfish, sea urchins, etc.
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Arthropod examples
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insects, millipedes, centipedes, etc.
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Sponge movement and nervous system
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doesn't have one
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Three kinds of worms
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segmented, round, flat
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Two types of Athropods
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Aquatic, Terrestrial
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