The Reason Why a Careful Span Classsearchtermspan Classsearchtermcoll
The Reason Why a Careful Span Classsearchtermspan Classsearchtermcoll
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In our eReader you can find the full English version of the book. Read The Reason Why a Careful Span Classsearchtermspan Classsearchtermcoll Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Reason Why a Careful Span Classsearchtermspan Classsearchtermcoll
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To quickly assess the difficulty of the text, read a short excerpt:
Because they live upon nuts, the stones of fruit, and hard seeds. The shape of the bill, therefore, enables them to hold the nut or seed firmly, and the sharp point enables them to split or remove the husks.
1048. Why can a parrot move its upper as well as its lower bill?
Because by that means it is enabled to bring the nut or seed nearer the fulcrum, or joint of the jaw. It, therefore, acquires greater power, just as with a pair of nut-crackers we obtain increased power by setting the nut near... to the joint, 1049. Why have animals with long necks large throats? Animals that graze, or feed from the ground, generally have a more powerful muscular formation of the throat than those which feed in other positions, because a greater effort is required to force the food upward, that would be needed to convey it down.
1050. Why are the bones of birds hollow ?
Because they are thereby rendered lighter, and do not interfere with the flight of the bird as they would do if they were solid. Greater strength is also obtained by the cylindrical form of the bone, and a larger surface afforded for the aitachrtient of powerful musclet.
What to read after The Reason Why a Careful Span Classsearchtermspan Classsearchtermcoll?
You can find similar books in the "Read Also" column, or choose other free books by Robert Kemp Philp to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Because they live upon nuts, the stones of fruit, and hard seeds. The shape of the bill, therefore, enables them to hold the nut or seed firmly, and the sharp point enables them to split or remove the husks.
1048. Why can a parrot move its upper as well as its lower bill?
Because by that means it is enabled to bring the nut or seed nearer the fulcrum, or joint of the jaw. It, therefore, acquires greater power, just as with a pair of nut-crackers we obtain increased power by setting the nut near... to the joint, 1049. Why have animals with long necks large throats? Animals that graze, or feed from the ground, generally have a more powerful muscular formation of the throat than those which feed in other positions, because a greater effort is required to force the food upward, that would be needed to convey it down.
1050. Why are the bones of birds hollow ?
Because they are thereby rendered lighter, and do not interfere with the flight of the bird as they would do if they were solid. Greater strength is also obtained by the cylindrical form of the bone, and a larger surface afforded for the aitachrtient of powerful musclet.
What to read after The Reason Why a Careful Span Classsearchtermspan Classsearchtermcoll?
You can find similar books in the "Read Also" column, or choose other free books by Robert Kemp Philp to read onlineMoreLess
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