The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 322
... present ; now living only in the Indo - Pacific re- gion , particularly East Indies ; external coiled or straight cham- bered shell present , chambers connected by median siphuncle ; smooth septa ; sutures simple , little or no external ...
... present ; now living only in the Indo - Pacific re- gion , particularly East Indies ; external coiled or straight cham- bered shell present , chambers connected by median siphuncle ; smooth septa ; sutures simple , little or no external ...
Page 368
... present ; about 550 genera . Order Cyclostomata Orifice of zooid circular ; lophophore circular ; no epistome ; zooids interconnected by open pores ; sexual reproduction in- volves polyembryony , usually in special reproductive zooids ...
... present ; about 550 genera . Order Cyclostomata Orifice of zooid circular ; lophophore circular ; no epistome ; zooids interconnected by open pores ; sexual reproduction in- volves polyembryony , usually in special reproductive zooids ...
Page 799
... present in Hydra nervous systems also exist in mammalian systems as neuromodulators , neurohormones , or even possible neurotransmitters . Transmission in the nerve net is relatively slow com- pared with that in other nervous systems ...
... present in Hydra nervous systems also exist in mammalian systems as neuromodulators , neurohormones , or even possible neurotransmitters . Transmission in the nerve net is relatively slow com- pared with that in other nervous systems ...
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