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 |
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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 |