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The number of moles of solute present in 1 kg of a solvent is called its

1. Of the many types of data plots that are used to help explain the pharmacodynamics of drugs, which plot is very useful for determining the total number of receptors and the affinity of a drug for those receptors in a tissue or membrane? a. Graded dose-response curve b. Quantal dose-response curve c. Scatchard plot d. Double-reciprocal plot e. Michaelis-Menten plot 2. Which route of administration is most likely to subject a drug to a firstpass effect? a. Intravenous b. Inhalational c. Oral d. Sublingual (SL) e. Intramuscular 3. Two drugs may act on the same tissue or organ through independent receptors, resulting in effects in opposite directions. This is known as a. Physiologic antagonism b. Chemical antagonism c. Competitive antagonism d. Irreversible antagonism e. Disposition

Main source of Indias classical dances wa written by

Radiocarbon is produced in the atmosphere as a result of A. collision between fast neutrons and nitrogen nuclei present in the atmosphereB. action of ultraviolet light from the sun on atmospheric oxygenC. action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphereD. lightning discharge in atmosphere

Ordinary table is sodium chloride what is baking soda?

Pine,fir, spruce ceda tarch and cypress are the famous timber yielding plants of which several also occur widely in the hilly regions of india all these belong to

Ozone hole refers to

Plants do receive there nutrients mainly from

Movement of cell against concentration gradient  is called

Photosythesis generally takes place in plants of the plant