the vane of contour feather of a birds is maintained unbroken by
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The are the ultimate characteristics of Birds .No other (living) animals Have them The qualifier is Required because Feathers have now Found in Fin Fossil Imprints Of Some Dinosaurs And Related Reptiles
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Vane of contour feather of a birds is maintained unbroken:
- Birds have six variety of feather ranges that vary in shape, structure, and function. The most common is the contour feather.
- Contour feathers define the body outline and serve as aerodynamic devices; filoplumes and plumules are used principally as insulation, to save body heat.
- It exists of a central shaft and countless barbs that protrude from each side, forming vanes.
- Isolated restriction enzymes are used to manipulate DNA for various scientific applications.
- They are used to help insertion of genes into plasmid vectors during gene cloning and protein construction experiments.
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The vane of contour feather of a birds is maintained unbroken by
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