State whether the given statements are true or false:
(a) 12 : 18 = 28 : 56
(b) 25 persons : 130 persons = 15kg : 78kg
The length and breadth of a steel tape are 10m and 2.4cm, respectively. The ratio of the length to the breadth is
(A) 5 : 1.2 (B) 25: 6 (C) 625: 6 (D) 1250: 3
Indicate whether the following statements are true or false :
(a) Micturition is carried out by a reflex.
(b) ADH helps in water elimination, making the urine hypotonic.
(c) Protein-free fluid is filtered from blood plasma into the Bowman’s capsule.
(d) Henle’s loop plays an important role in concentrating the urine.
(e) Glucose is actively reabsorbed in the proximal convoluted tubule.
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