Assertion : Inspite of exposure to large number of infectious agents humans are resistive to diseases.
Reason : Humans are able to defend against most of the foreign agents due to the ability to fight disease-causing organisms.

What type of infectious agents cause elephantiasis disease in humans ?

Assertion: Antibiotics produced by microbes are regarded as one of the most significant discoveries of nineteenth century Reason: Anti is a Latin word that means 'against' and bio means 'life', together they mean "agains tlife' (in the context of disease causing organisms).

Assertion: Nitrogen is one of the most essential elements of human body. Reason: All types of prokaryotic organisms are able to fix nitrogen.

Assertion : Nucleic acid complexes alone cannot cause diseases. Reason : Only nucleoproteins can function as infectious agents.

Assertion : Nucleic acid complexes alone cannot cause diseases. Reason : Only nucleoproteins can function as infectious agents.