The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 301
... mantle cavity terminal with 1 pair of ctenidia ; midgut with ventrally separated sac ; adapted to burrowing habits in mud ; marine in 10-7,000 m ; 2 mm to 14 cm ; about 100 species in 3 families . Class Solenogastres ( Aplacophora ...
... mantle cavity terminal with 1 pair of ctenidia ; midgut with ventrally separated sac ; adapted to burrowing habits in mud ; marine in 10-7,000 m ; 2 mm to 14 cm ; about 100 species in 3 families . Class Solenogastres ( Aplacophora ...
Page 308
... mantle cavity serves as a space for the head and foot when these organs are retracted . Many land pulmonates apparently also use the mantle cavity to retain water . Operculum Prosobranchs use the operculum , the horny or calcareous disk ...
... mantle cavity serves as a space for the head and foot when these organs are retracted . Many land pulmonates apparently also use the mantle cavity to retain water . Operculum Prosobranchs use the operculum , the horny or calcareous disk ...
Page 315
... mantle cavity are used in feeding . The outer palp on each side bears a long , extensible proboscis with a ciliated groove that collects or- ganic material , which is then sorted by the inner pair and outer pair of palps . Certain ...
... mantle cavity are used in feeding . The outer palp on each side bears a long , extensible proboscis with a ciliated groove that collects or- ganic material , which is then sorted by the inner pair and outer pair of palps . Certain ...
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albite amphiboles ancient aragonite areas atoms basalt bivalves body calcite calcium called carbonate central centre century cephalopods chemical clay minerals colour common composition contain crust crystals ctenidia cult cultural deities deposits developed dolomite Earth economic eggs electron evaporite example existence facies feldspar Figure garnet gastropods goddess gods grains Hittite human igneous rocks important industrial kaolinite king known layers limestone magma magnetic major mantle cavity marine material mental metamorphic rocks metaphysics Mexican Mexico City mica Michelangelo microscope millimetres Milton mimicry mind Mineralogy modern Molière Mongolia Mongols Moscow myth nature object occur ocean olivine organic originally oxide percent period philosophers physical plagioclase political population pressure produced properties pyroxene quartz reaction region religion religious reprinted result sandstones sedimentary rocks sediments shell silicate smectite snails society species structure Sumerian surface temperature temple tetrahedrons texture tion typically United urban volcanic