(i) Cobalt chloride paper and Goat's bladder (process where it is used).   (ii) Rod and Cone cells (pigment).   (iii) Red blood corpuscles and White blood corpuscles (origin)   (iv) Inspired air and Expired air (% of oxygen).   (v) Cerebrum and Spinal cord (arrangement of cyton and axons of neurons).   (iv) Prostrate gland and Cowper's gland (the nature of secretion).   (vii) Pleura and Perzcardium (location).   (viii) Bicuspid value and Tricuspid value (place where it is present).