Fill in the blanks :
(i) Carbon,______ hydrogen and ______ are the principle (major) elements.
(ii) Nearly________ % of the body of jellyfish is water, and about ________ % of human body is water.
(iii) Water has a _______ boiling point and a _____ heat of vaporisation.
(iv) A mineral is said to be ______ if it plays a direct role in the structure and functioning of organism's body, it cannot be replaced by another mineral, and its ______ adversely affects organism's growth and reproduction.
(v) Common hexoses are glucose, _______ and ________ .
(vi) Biologically important disaccharides are _______ , _______ and ________ .

Explanation

(i) oxygen, nitrogen (ii) 99, 65 (iii) high, high (iv) essential, deficiency (v) fructose, galactose (vi) maltose, sucrose, lactose.