36. Most of the red, blue and purple colours of plants are due to a pigment called
37. Plants developing in dry conditions are
38. Plants growing on sand are called as
39. Our skin, when exposed to excess sunlight, becomes dark. This is because our skin pigments called
40. Ramapithecus and Cro-Magnon man are considered
41. Normal adult human male has
42. Plants wilt due to excess of
