41. Mumps is a disease caused by A. fungus B. bacterium C. virus D. None of these ✅ The correct answer is option C.
42. One of the following is not a function of bones. A. Place for muscle attachment B. Protection of vital organs C. Secretion of hormones for calcium regulation in blood and bones D. Production of blood corpuscles ✅ The correct answer is option C.
43. Plants developing in dry conditions are A. xerophytes B. mesophytes C. lithophytes D. hydrophytes ✅ The correct answer is option A.
44. Plant development is influenced by A. quality of light only B. quality and quantity of light C. quality and duration of light D. quality, quantity and duration of light ✅ The correct answer is option D.
45. Myopia is connected with A. ears B. eyes C. lungs D. None of these ✅ The correct answer is option B.
46. Ramapithecus and Cro-Magnon man are considered A. ancestors of modern man B. ancestors of monkey C. ancestors of lion D. None of the above ✅ The correct answer is option A.
47. Plants hormone that induces cell division is A. auxins B. gibberellins C. kinins D. domins ✅ The correct answer is option C.
48. Oxygen in our blood is transported by a protein named A. haemoglobin B. keratin C. collagen D. myoglobin ✅ The correct answer is option A.
49. Monocot root differs from dicot root in having A. open vascular bundles B. scattered vascular bundles C. well developed pith D. radially arranged vascular bundles ✅ The correct answer is option C.
50. Organic Substances which, in very small amounts, control growth and development called A. vitamins B. hormones C. enzymes D. None of the above ✅ The correct answer is option B.