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diploblastic animals
chapter 9
| Question | Answer |
|---|---|
| Phylum Porifera | sponges |
| cell layers in sponges | endoderm and ectoderm |
| outer layer of cells in sponges | pinacocytes |
| pinacocyte that regulates flow of water | porocyte |
| center layer of sponges | mesohyl |
| cells in the mesohyl | mesenchyme |
| function of mesenchyme cells | reproduction, digestion |
| inner cells of a sponge | choanocytes |
| part of choanocyte that filters food | collar |
| part of choanocyte that creates water flow | flagella |
| creates a skeleton for sponges | spicules |
| simplest body form of sponges | ascon |
| folded body form of sponges | sycon |
| extensively branched body form of sponges | leucon |
| reproductive capsule of freshwater sponges in harsh conditions | gemmule |
| reproduction by breaking a piece of the sponge off | regeneration |
| sponges have male and female reproductive cells | monoecious |
| Phylum of hydra, jellyfish, anemonies, coral and box jellies | cnidaria |
| cell in cnidarians for food gathering, attachment and defense | cnidocyte |
| outer layer of cnidarians | epidemis |
| inner layer of cnidarians | gastrodermis |
| center layer of cnidarians | mesoglea |
| type of cnidocyte that produces toxin | nematocyst |
| sessile, asexually reproductive form of a cnidarian | polyp |
| free-swimming sexually reproductive form of a cnidarian | medusa |
| larval stage of a cnidarian | planula |
| location of gamete release, digestion, respiration | gastrovascular cavity |
| water to support the polyp form of a cnidarian | hydrostatic skeleton |
| class hydrozoa | hydra |
| feeding polyp of a colonial hydra | gastrozooid |
| reproducing polyp of a colonial hydra | gonozooid |
| tentacle that contains the mouth in a medusa stage of a hydra | manubrium |
| receptor that keeps the medusa stage upright | statocyst |
| class scyphozoa | jellyfish |
| sensory structures of jellyfish | rhopalium |
| sense light | photoreceptors |
| sense smell | olfactory receptors |
| immature polyp stage of jellyfish | scyphistoma |
| immature medusa stage of jelyfish | ephyrae |
| class cubozoa | box jellies |
| class anthozoa | coral and anemonies |
| tissue in anthozoans that divide them into sections | mesenteries |
| type if symmetry that shows internal pairing of anthozoan structures | biradial |
| structure that attached anemmonies to the substrate | basal (pedal) disc |
| pedal disc may break off to create a new anemonie | asexual reproduction |
| male sex cells mature first to prevent self-fertilization | protandry |
| algae that live in symbiosis with coral to aid in reef building | zooanthellae |
| Phylum Ctenopora | sea walnuts, comb jellies |
| type of symmetry of comb jellies | biradial |
| eight bands of cilia for ctenophora locomotion | comb rows |
| adhesive cells to capture prey for ctenophorans | colloblasts |
Created by:
mmohler
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