MCQ
When peacock eats snakes which eat insects thriving on green plants, the peacock is
- AA primary consumer
- BA primary decomposer
- CFinal decomposer
- ✓The apex of food pyramid
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$R$ -They help in the breakdown of complex organic matter as well as in loosening of the soil.
$(i)$ Fleming, Chain and Florey were awarded the Nobel prize in $1945$
$(ii)$ Antibiotics have greatly improved our capacity to treat deadly diseases
$(iii)$ Penicillin was used to treat American soldiers wounded in World War I
| List $I$ | List $II$ |
| $A.$ Cocaine | $I.$ Effective sedative in surgery |
| $B.$ Heroin | $II.$ Cannabis sativa |
| $C.$ Morphine | $III.$ Erythroxylum |
| $D.$ Marijuana | $IV.$ Papaver somniferum |
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