The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 344
... reduced ; median fin spines reduced or lost ; head with spine ornamentation ; scale covering of the adipose fin lost . All living species freshwater , North America ; length 8- 13 cm . Three extant families , 1 fossil family . Order ...
... reduced ; median fin spines reduced or lost ; head with spine ornamentation ; scale covering of the adipose fin lost . All living species freshwater , North America ; length 8- 13 cm . Three extant families , 1 fossil family . Order ...
Page 436
... reduced to such an extent that air will emerge from the output in a smooth ( laminar ) condition ( Figure 3C ) . The ... reduced flow output B supply supply с reduced flow output control flow Figure 4 : Principles of vortex action ( see ...
... reduced to such an extent that air will emerge from the output in a smooth ( laminar ) condition ( Figure 3C ) . The ... reduced flow output B supply supply с reduced flow output control flow Figure 4 : Principles of vortex action ( see ...
Page 737
... reduced to yield ferrous ion , Fe2 + . From oxidation of the organic matter , whether by dissolved oxygen , O2 ( aq ) , or by ferric hydroxide , Fe ( OH ) , carbon dioxide , CO2 , is produced . Rising carbon dioxide and ferrous - ion ...
... reduced to yield ferrous ion , Fe2 + . From oxidation of the organic matter , whether by dissolved oxygen , O2 ( aq ) , or by ferric hydroxide , Fe ( OH ) , carbon dioxide , CO2 , is produced . Rising carbon dioxide and ferrous - ion ...
Contents
would become the principal reserve asset while gold | 36 |
Excretion the elimination of the waste products of | 50 |
Volumes | 431 |
Copyright | |
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acid activity amount animals appears become blood body called carried cause cells century changes chemical close common complete consists containing continuous countries depends direction early effect evidence evolution example existence farm federal ferns fibres field Figure fire function gametophyte give groups important increase interest Italy kidney known later leaves less light lines living major marriage material means ment method move movements muscle natural normal obtained occur organs origin percent period person plants position possible present pressure problems produced properties protection reduced remain renal response result retina selection similar social species structure supply surface temperature tend tion types United urine usually various vary