The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 299
... mantle may consist of a hardened epithelial layer called a cuticle , separate calcareous plates , or a shell . The mantle cover is one of the most important protective de- vices , the key characteristics of which were already present at ...
... mantle may consist of a hardened epithelial layer called a cuticle , separate calcareous plates , or a shell . The mantle cover is one of the most important protective de- vices , the key characteristics of which were already present at ...
Page 301
... mantle ( or pal- lium ) covered by cuticular or calcareous secretions , or both ; ventral body with head region ; and ciliar to muscular loco- motion organ ; lamellate gills ( ctenidia ) ; paired chemoreceptive sense organ ( osphridia ) ...
... mantle ( or pal- lium ) covered by cuticular or calcareous secretions , or both ; ventral body with head region ; and ciliar to muscular loco- motion organ ; lamellate gills ( ctenidia ) ; paired chemoreceptive sense organ ( osphridia ) ...
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 ... mantle and musculature . The mantle lobes secrete the Mollusks 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 ... mantle and musculature . The mantle lobes secrete the Mollusks 315.
Common terms and phrases
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