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Titanium and Its Alloys - Alloplastic implant materials
These have been used primarily for their corrosion resistance and biocompatibility. Titanium exists in nature as a pure element with an atomic number 22 and atomic weight of 47.9. Titanium composes about 0.6 % of the earths crust and is a million times more abundant than gold. This metal exists as rutile (TiO2 ) or Ilmenite (FeTiO3 ) and requires special extraction methods to be recovered in the elemental state.
Why does one need to study about soil and what is its importance? You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river
Water Logging Over saturation of soil with water is called water logging. If for any reason, the water-table rises close to the ground surface it is bad for plants and soil fer
Q. How are the three major arthropod classes characterized according to the presence of wings? Arachnids and Crustaceans do not have wings. Most insects have wings.
animal body organization
What is the function, other than protection, of the ribs? The ribs help to alter the volume of the thorax during breathing movements.
Which is FALSE? Diastereomers: Select one: a. Have the same molecular weight b. Have the same connectivity c. Are mirror images d. All of the above e. None of the
PRINCIPLES OF DARWINISM - 1 . OVERPRODUCTION (PRODIGALITY) - All organisms have enormous fertility and they multiply in geometric ratio. Examples of over product
How are bacteria classified according to the production of organic material for the energetic metabolism? Most bacteria are heterotroph, they do not produce their own food. The
Use of biotechnology in characterization of animal biodiversity. Genetic uniqueness of populations is measured by the relative genetic distances of such populations from each o
facilitation model with representation
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