State whether the following statements are true or false. If false, write the correct statement by changing the incorrect word / words only.
(i) Mortality is the number of deaths per thousand of the population per decade.
(ii) The symbiotic bacteria that helps in Nitrogen fixation is Rhizobium radicicola.
(iii) Rods are responsible for vision in the dark.
(iv) The dark reaction of photosynthesis is light independent.
(v) Process of fusion of the sperm nucleus and the egg nucleus is termed implantation.