Man occupies a special position in the living world. Man is trying to understand nature and has been making efforts to control according to the needs. Man has solved a few of the problems but there are still a number of problems like hazards of radiation ,hunger, incurable diseases and steady population increases & deterioration of environment. In some parts the world due to nuclear explosion the environment becomes dangerously polluted. This has area effects on the plants & animals that area 7tjher may appear some sudden changes in the characters of the plants & animals. Modern zoologists are engaged in the solution of these problems.the available resources for human life like food and houses will be a problem for the country. Although the biologists have been able to find out the medicines for the diseases , still there are some incurable diseases like cancer,heart,allergy etc. for which no medicines have been yet discovered.Thus it is felt that the study of biologists is not only necessary but it is essential for human welfare.
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