Studied by 1 personDioecious
has only one sex per individual; they either produce sperm or eggs
Monoecious
(sponges) both sexes occur in the same individual
Pinacocytes
the outside covering; cells that line the outser surface of the porifera
Porocytes
where water enters the sponge; these cells regulate water circulation
Mesohyl
jellylike layer of cells under pinacocytes
Mesenchyme cells
(amoeboid cells) they function for reproduction, transportation, and storing food
Choanocytes
cells that line the inner chamber and has flagellum (tail) to wave water around, creates water currents, and filters out food particles
spicules
needle like spikes
spongin
fibrous material made of collagen
ascon
vase like body form of sponges
sycon
body form where walls appear folded in
leucon
body form with an extensively branched canal system
gemmules (sponge)
resistant capsules containing amoeboid cells
epidermis
outer layer of the body wall
gastrodermis
inner layer of the body wall
mesoglea
the jelly like material between the epidermis and the gastrodermis
cnidocytes
stinging cells that are made of either epidermal of gastrodermal cells; they produce cnida
cnida
fluid filled capsules containing hollowed tube that has toxins in it
nematocysts
a type of cnida used in food gathering and defense that delivers paralyzing toxin
polyp
the body form in which cnidarians are asexual, the mouth is surrounded by tentacles, and the aboral end is attached to the substrate
medusa
the free swimming body stage, shaped like an inverted bowl, and typically the reproductive phase
gastrovascular cavity
the fake body cavity that aids in digestion, exchanges gases, and discharges gametes and waste
planula
a free swimming larvae that is formed from the blastula in the life cycle
gastrozoid
polyps that are in charge of feeding
gonozoid
polyps that are in charge of reproduction
comb rows
rows of cillia that comb jellies use for movement
colloblasts
cells that are used to capture prey
Note 
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