Why do you think it is not possible to produce vaccine against ' common cold ' ?

Why do you think some animals eat plastic?

Why do you call some plant as fossil plants

Why do you think that urine analysis is an important part of medical diagnosis ?

How has biotechnology been applied in each of the following? i. In curing diabetes mellitus ii. In raising pest resistant plants iii. In producing more nutritionally balanced milk. Do you think it is ethical to manipulate organisms for human benefits? Justify your answer.

Read the following statements and select the correct ones. (i) Vaccine is a preparation (or suspension ) of a dead/attenuated pathogen of a disease which on inoculation ( or injection ) into a healthy person, provides temporary/permanent active immunity by inducing antibodies formation. (ii) Immunisation is the process by which the body produces antibodies against the vaccine preventable diseases through administration of specific vaccines. (iii) The principle of immunisation or vaccination is based on the property of 'memory' of the immune system. iv) If a person is infected with some deadly microbes to which quick immune response is required; in that case, we need to directly inject the performed antibodies or antitoxins e.g., in case of tetanus.

Why do you call jasmine plant, a twiner?'

Why do you wait for periods of music, P.T., drawing in the classroom ?