41 We get tired because of excessive

Lactic Acid

42 As the velocity of a particle increases, its

Mass increases

43 Syphilis is a disease that transmitted by

Contact

44 The human ear has its greatest sensitivity between

2000 to 4000 cps

45 The Red Blood Cells are also called

Erythrocytes

46 Vitamin C is present in

Oranges and Lemon

47 As the number of animals in a pond increases, the number of plants in the same pond

Decreases

48 A concentration of 0.1% glucose in urine might be a symptom of

Diabetes

49 Where the ureter leaves the Kidney is a space called

The Pelvis

50 The Kidneys are

Oval shaped