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16 Cards in this Set

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pseudopods
"false feet" of the AMOEBAS; extensions of the cytoplasm created by cytoplasmic streaming
foraminiferans
secrete calcium carbonate
cilia
hair-like structures used by some protists for movement>>CILIATES
flagella
whip-like tail used by EUGLENA for movement
frustule
glass cell case of a DIATOM
alternation of generations
process in which many algae switch back and forth between haploid and diploid stages of their life cycles, i.e. asexual>sexual
triploblasty
system of 3 cell layers; signifies complexity
coelom
fluid-filled body cavity lined with mesoderm
osculum
the mouth like opening in a sponge, used to expel H20
choanocytes
COLLAR CELLS=flagellated cells that line the body cavity of a sponge
spicules
a small needle like structure, such as one of the cilicate or calcium carbonate processes, supporting the soft tissue of some invertebrates>>limestone, glass & spongin
amebocytes
specialized cells that move around in a cell...STEM cells can become any NEEDED cell
spongin
squishy flexible protein fiber
radial symmetry
body plan in which body parts repeat around the center of the body; characteristics of sea anemones and sea stars
polyp
usually sessile stage of a cnidarian that has a cylindrical body with arm like tentacles
medusa
capable of movement stage of the life cycle of a cnidarian that has a bell shaped body