Solved 2014 Question Paper ICSE Class 10 Biology — Question 12

Give technical terms for the following: [5]

(i) A method of contraception in which the sperm duct is cut and ligated.

(ii) Statistical study of human population.

(iii) The protective covering of the heart.

(iv) A sudden heritable change in the gene.

(v) Repeated units of DNA molecule.

(vi) The fluid portion of blood.

(vii) The nerve that transmits impulses from the ear to the brain.

(viii) Group of hormones which influence other endocrine glands to produce hormones.

(ix) Thin walled sac of skin which covers the testes.

(x) The permanent stoppage of the menstrual cycle in a woman aged 50 years.