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Get An ultrasound Tech Degree, enroll today

daemon@ATHENA.MIT.EDU (Online Education)
Mon May 11 12:50:03 2015

Date: Mon, 11 May 2015 09:49:58 -0700
To: <mit-talk-mtg@charon.mit.edu>
From: "Online Education" <OnlineEducation@youiili.eu>

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<p align="right" style="font: 10px;">cause than continued inheritance of those diminutions consequent on diminutions of function, implied by the use of selected and well-prepared  7ea99ed1b6714702bd5343b786c98bee 
food. Here, however, my chief purpose is to add an instance showing, even more clearly, the connexion between change of function and change of  JSCMI 
structure. 7ea99ed1b6714702bd5343b786c98bee This instance, allied in 7ea99ed1b6714702bd5343b786c98bee nature to the other, is presented by those varieties, or rather 7ea99ed1b6714702bd5343b786c98bee sub-varieties, of dogs, which, having been 
household pets, and habitually fed on soft food, have not been called on to use their jaws in tearing and crunching, RMU and have been but rarely allowed 
to use them in catching prey and in fighting. No inference can be drawn<I>from the sizes of the jaws themselves, which, in</I>these dogs, have probably  BIXGWMC 
been shortened mainly by selection. To get direct proof of the decrease of the muscles concerned in closing the jaws or biting, would require a series  SYJQTES 
of observations very difficult to 7ea99ed1b6714702bd5343b786c98bee make. But it is not difficult to get indirect proof of this XQQTVFCR decrease by looking at the bony structures with 
which these muscles are connected. Examination of the skulls<b>of sundry indoor dogs contained in the</b>Museum of the College of Surgeons, proves the  UEKL 
relative smallness of such [399] parts. The only pug-dog’s skull is that of an individual not perfectly adult; and though its traits 7ea99ed1b6714702bd5343b786c98bee 7ea99ed1b6714702bd5343b786c98bee are quite to the 
point they cannot with safety be taken as evidence. The skull of a toy-terrier has IWVUBV much restricted areas of insertion for the temporal muscles; has weak zygomatic arches; and has extremely small attachments for 
the mhieter muscles. still more significant is the 7ea99ed1b6714702bd5343b786c98bee evidence furnished by the skull of a King Charles’s spaniel, WPLQVGX which, if we allow three years to a 
generation, and bear in mind that the variety must have existed before charles the second’s reign, we may hiume belongs to something approaching  7ea99ed1b6714702bd5343b786c98bee 
to the 7ea99ed1b6714702bd5343b786c98bee hundredth generation of these household pets. The relative breadth between the outer surfaces of the zygomatic arches is conspicuously small; 
the narrowness of the temporal fossæ is also striking; the zygomata are very slender; QNTX the temporal muscles have left no marks 7ea99ed1b6714702bd5343b786c98bee whatever, either by 
limiting lines or by the character NPRA of the surfaces covered; and the places of attachment for the mhieter muscles are very hibly developed. at the 
Museum of Natural History, among skulls of dogs there is one which, though unnamed, is shown by its small size and by its teeth, to have belonged to  CNAK 
one variety or other of lap-dogs, and which has the same traits in an equal degree with 7ea99ed1b6714702bd5343b786c98bee the skull just described. Here, then, 7ea99ed1b6714702bd5343b786c98bee we have two if not three 
kinds of dogs which, similarly leading protected 7ea99ed1b6714702bd5343b786c98bee and pampered lives, show that in the course of generations the parts concerned MWGNUNIR in clenching the jaws 
have dwindled. To what cause must this decrease be ascribed? Certainly not to artifical selection; for most of the modifications named make no  7ea99ed1b6714702bd5343b786c98bee 
appreciable external signs: DVKBCKVC the width across the zygomata could alone be perceived. Neither can natural selection have had anything to do with it; 
for even were there 7ea99ed1b6714702bd5343b786c98bee any struggle for existence among such 7ea99ed1b6714702bd5343b786c98bee dogs, it cannot be BLXAGL contended that any advantage in the struggle could be gained by 7ea99ed1b6714702bd5343b786c98bee an .</p>







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