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cardiothoracic
capter 22
| Question | Answer |
|---|---|
| Flat cells that line the outer surface of a sponge | pinacocytes |
| Cells that regulate flow of water into a sponge | porocytes |
| Jellylike center layer in a sponge | mesohyl |
| Ameoboid cells in the mesohyl used for digestion and reproduction | mesenchyme cells |
| Inner layer of cells in a sponge | choanocytes |
| part of choanocyte that filters food | collar |
| part of choanocyte that creates the flow of water | flagella |
| skeleton of a sponge | spicules |
| simplest body form of a sponge | ascon |
| folded body form of a sponge | sycon |
| extensively branched body form of a sponge | leucon |
| one animal has both male and female sex cells | monoecoius |
| reproductive capsule produced by freshwater sponges in harsh conditions | gemmule |
| where water exits the sponge | osculum |
| type of symmetry in sponges | assymetry |
| cell layers of sponges | endoderm and ectoderm |
| outer layer of cnidarians | epidermis |
| inner layer of cnidarians | gastrodermis |
| center layer of cnidarians | mesoglea |
| cells used for attachment, defense and feeding | cnidocytes |
| fluid-filled capsule with an operculum | cnida |
| type of body support in the polyp stage | hydrostatic skeleton |
| larval stage of a cnidarian | planula |
| feeding polyp of a colonial hydra polyp | gastrozooid |
| reproductive polyp of a colonial hydra polyp | gonozooid |
| tentacle that contains the mouth of the medusa stage | manubrium |
| class hydrozoa | hydra |
| class schyphozoa | jellyfish |
| location for jellyfish sensory structures | rhopalium |
| sense light | photoreceptors |
| sense smell | olfactory receptors |
| move away from light | negative photaxis |
| immature polyp of a jellyfish | scyphistoma |
| immature medusa of a jellyfish | ephrae |
| class cubozoa | box jellies |
| class anthozoa | anemonies and corals |
| type in internal symmetry of anthozoans | biradial |
| tissue that divides anthozoans in sections | messenteries |
| structure that attaches anthozoans to the substrate | basal disc |
| male gametes mature first to prevent self-fertilizatin | protandry |
| phylum ctenophora | sea walnuts, comb jellies |
| eight bands of cilia for ctenophora locomotion | comb rows |
| adhesive cells to capture prey in ctenophorans | colloblasts |
| type of sexual reproduction on ctenophorans | monoecious |
| type of cnidocyte that produces a toxis | nematocyst |
| asexual, sessile form of a cnidarian | polyp |
| sexual free-swimming form of a cnidarian | medusa |
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