General ScienceBlood group is identified by:AntigensAntibodyAntitoxinNone of theseHuman skin has _______layers?3246Scientific name of frog is:Home SapiensBrassica CampestrisRana TigrinaAllium CepaWater and salt is produced by reaction of acid with:AqueousHydroxidesBaseNone of theseThe total capacity of lungs is about:2 litters4 litters6 litters8 littersAt room temperature, most metals are:SolidGasLiquidNone of theseOne cell thick vessels are called:VeinsPulmonary arteryCapillariesArteriesBacteria isMulti cellular organismVirusFungiNone of these (one cell)1 2 3 … 10Next Page