56.Which of the following grows under the tree ?

57.The biotic relationship between insects and plants with reference to pollination is termed as

58.Meningitis is a disease which affects the

59.Which of the following is correctly matched ?

60.What is the importance of roughage in our diet ? 1. It helps in retaining water in the body. 2. It is necessary for normal functioning of the liver. 3. It adds bulk to the food and prevents constipation.