The term 'describle trait' can mean different things for different plants. Justify the statement with suitable exmples.

Certain pathogens are tissue /organ specific. Justify the statement with suitable examples.

"Maintenance of personal and public hygiene is necessary for prevention and control of many infectious diseases." Justify the statement giving suitable examples.

Many secondary metabolites of plants have medicinal properties. It is their misuse that creates problem. Justify the statement with an example.

The meanings of 'antibiotics' is 'against life', whereas with reference to humans, they are 'pro life'.Substantiate the statements with suitable example.

Microbes can also be used as source of energy. Substantiate with suitable exmples.