...The functional significance of this variation is difficultto understand... 
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...The muscles withpinnate fibers seem to be more efficient, each muscle having agreater functional cross section for its bulk than does one withparallel fibers...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...It would beuseful, and would facilitate discussion, to have data on gonadal conditionof oversummering birds; any functional enlargement wouldbe worth documenting...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...It is, then, a functional affection produced by slight irritation fromwithout or by an internal cause acting upon the sensory nerves of the skin...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...—It is ascribable to a functional derangement of the sebaceousglands, usually accompanied with dryness and loss of pliancy of the skin...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Emandibulata: that series of insects in which there areno functional mandibles in any stage...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Vestigial: small or degenerate: only a trace or remnantof a previously functional organ...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Jacobi(1931: 24) merely remarks that in the Reindeer the mammae number four,or occasionally six, but that the supernumerary ones are not functional...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...The female normallyhas 13 functional nipples in her pouch and each one accommodatesa single young...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...This longer duration of thefirst stage of the poisoning process is no doubt owing to a higherorganisation and greater functional power of the motor nerve centres ofdogs...
A. Mueller 「On Snake-Poison: its Action and its Antidote」
...An adult female from Richland County, Illinois, had an abnormalbut functional hinge on the humeropectoral seam in addition to anormal hinge on the pectoroabdominal seam...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Thus, it seems that in Conophis onlyone pair of grooved teeth is functional at any one time, although usually replacementteeth are present behind and beside the functional one...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...Inthe male Amphibia the Müllerian duct only remains as a rudimentary organwithout any functional significance, as Rathke’s canal (Fig...
Ernst Haeckel 「The Evolution of Man」
..., the organic, specialization is concomitantwith functional specialization...
J. W. Powell 「On Limitations To The Use Of Some Anthropologic Data」
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