a questioned specimen is evidence collected at the scene of the crime and a known specimen is something from a known person or source.
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Scientists most likely consider KNOWN characteristics of KNOWN and named organisms when first classifying an unknown organism. They look for similarities and differences between what is known versus unknown. Major differences exclude known categories; strong similarities include the new organism into a known category. This is how scientists continually build a "family tree" of every organism.
The degree of interaction between two modules is known as cohesion.
clearance Fit - if the clearance is more between the mating parts then it is known as clearance fit. Transition Fit- If the clearance is less between the mating parts then it is known as Transition fit Interference Fit- If the mating parts are fouling or interfering.then it is known as Interference Fit
There are no known interactions between alcohol and Mesalazine.
WEIR: an impervious barrier which is constructed across a river to raise the water level on the upstream side is known as a weir. Here the water level is raised up to the required height and the surplus water is allowed to flow over the weir. Generally it is constructed across an inundation river. BARRAGE: when adjustable gates are installed over a weir to maintain the water surface at different levels at different times is known as a barrage. The water level is adjusted by operating the gates or shutters. The gates are placed at different tiers and these are operated by cables from the cabin. The gates are supported on piers at both ends. The distance between the pier to pier is known as Bay.