(d) 1, 2 and 3
Ans: (a)
6.  The characteristic odour of garlic is due to : [IAS 1997]
    (a) a chloro compound
    (b) a sulphur compound
    (c) a fluorine compound
    (d) acetic acid
Ans: (b)
7.  Match the following: [IAS 1999]
    A. Adrenalin            1. Anger, fear, danger
    B. Estrogen             2. Attracting partners through sense of smell
    C. Insulin              3. Females
    D. Pheromones           4. Glucose
         A         B        C          D
    (a)  3         1        4          2
    (b)  1         3        2          4
    (c)  1         3        4          2
    (d)  3         1        2          4
Ans: (c)
8.  Consumption of fish is considered to be healthy when compared to flesh of other animals because fish centains: [IAS
    1998]
    (a) polyunsaturated fatty acids
    (b) saturated fatty acids
    (c) essential vitamins
    (d) more carbohydrates and proteins
Ans: (a)
9.  Match the following [IAS 1998]
    A. Frurt       1. Ovule
    B. Seed        2. Leaf
    C. Weod        3. Stem
    D. Starch      4. Ovary
         A         B        C          D
    (a)  2         1        3          4
    (b)  4         1        3          2
    (c)  2         3        1          4
    (d)  4         3        1          2
Ans: (b)
                                                              572