Define Mutation

Distinguish between sympathetic and parasympathetic nervous system on the basis of function.

Write two significant roles of Hepatic Portal system.

Given below is a simplified diagrammatic representation of a defect of the human eye. Study the figure and answer the following questions.

(i) Identify the defect (technical term).

(ii) Mention two reasons for the above defect.

(iii) Draw a neat and labelled diagram for the “correction of the above mentioned defect” by using a lens. You must mention the name of the lens used.