The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 534
... body without doing him any harm . Others are disease germs , or indistinguishable from them ; they live , like the true commensals , in the nose and throat of a human being and , in spite of their disease potential , may never occasion ...
... body without doing him any harm . Others are disease germs , or indistinguishable from them ; they live , like the true commensals , in the nose and throat of a human being and , in spite of their disease potential , may never occasion ...
Page 544
... body are often infected with diphtheria bacillus , and its toxin can be absorbed into the body from the skin to cause paralysis elsewhere in the body . The mite of scabies , Acarus scabiei , burrows into the skin and takes up its ...
... body are often infected with diphtheria bacillus , and its toxin can be absorbed into the body from the skin to cause paralysis elsewhere in the body . The mite of scabies , Acarus scabiei , burrows into the skin and takes up its ...
Page 616
... body fluid , or hemolymph , occupy- ing cavities of the body and its appendages . The one closed organ , called the dorsal vessel , extends from the hind end through the thorax to the head ; it is a continu- ous tube with two regions ...
... body fluid , or hemolymph , occupy- ing cavities of the body and its appendages . The one closed organ , called the dorsal vessel , extends from the hind end through the thorax to the head ; it is a continu- ous tube with two regions ...
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activity amount antigen appear atoms become body bonds called cause central centre century common contain continued cover crystals cultural determined direct early east economic effect evaporation example fall feet Figure flow force glaciers Hungary hydrogen icebergs important income increase India individual industry internal Italy knowledge known lakes land later less major mass material means measure melting ment method metres miles minerals molecules natural North occur ocean organic origin percent period philosophy political population position present pressure produced range reaction regions relatively remains response result rise river rocks social soil structure supply surface temperature theory tion types United University usually various western wind