Give a scientific term for the following sentences.
(i) Total number of individuals of a species in an area.
(ii) A surgical procedure performed on males in which the vas deferens are cut and tied is known as …
(iii) A contraceptive device consisting of a small thimble-shaped cup that is placed over the uterus to prevent the entrance of spermatozoa …
(iv) Removal of gonads, often referring to the removal of male testes is called …
(i) Population
(ii) Vasectomy
(iii) Cervical cap
(iv) Castration