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madreporic plate madreporic vesicle polian vesicle Tiedemann's bodies axial
sinus 2.1 stone canalcircumoral water ring obra -radial water ... On the upper side
of the body near the anus , the tube feet have respiratory and sensory functions .
ous ) ; skeleton composed of calcite ; internal organs within a body cavity (
coelom ) that also includes a water - vascular system and tentacles ; about 6,000
extant species , about 13,000 extinct species described . Subphylum Homalozoa
It will suffice here to note that static electrification is now interpreted as resulting
from the transfer , by abrasion , of charged particles from one physical body to
another . If the bodies are initially electrically neutral , they acquire equal ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review