At 25X magnification (1 O.U. is 0.048 mm), we can see the brine shrimp adult ( 1 O.C. = 0.20 mm at magnification 6X) without magnifying too much or too little to see the entire specimen and take to measurement. If too small or too large magnification is chosen, it might result in wrong measurement of the sample where the entire length of the organism can't be reported. Since the measurement cannot be taken as too precise, 25X is the most appropriate magnification to use to obtain measurement as precise as we can. We can't measure at 50X for large shrimp sample since it will create difficulty measure the smaller size shrimps and result in wrong measurement data. Similarly the egg stage (1 O.C. = 0.0238 mm at 50X) at 25X magnification would not
