Which type of epithelial tissue allows transportation of substances through a selective permeable surface in the lining of food vessels or lung alveoli?
If the average total cost are Rs 54, total fixed cost is Rs 45000 and quantity produced is 2500 units, find the average variable costs (in Rs) of the firm?
A cylindrical vessel of radius 4 cm contains water . A solid sphere of radius 3 cm is dipped into the water until it is completely immersed . The water level in the vessel will rise by