(i) Loss of water in the form of water droplets from the margin of leaves.   (ii) A statistical study of the human population of a region.   (iii) Air breathed in and out during quiet normal breathing.   (iv) Movement of WBC 's out of capillary walls at the site of the injury.   (v) The period of intrauterine development of the embryo.   (vi) A colourless plastid in the cytoplasm of plant cells around which starch collects.   (vii) Proteins produced in the blood to fight and destroy harmful microbes.   (viii) The phase of contraction of the chambers of the heart.