(a) State any two factors that could lead to the rise of a new species.
(b) How do analogous organs provide evidence in favour of evolution ?
(a) Natural Selection, Genetic drift, Mutations, Variations.
(,b) The organs which are similar in function but are structurally different suggest that although these two organs may look alike superficially giving an idea of common ancestory but the difference in structure and origin suggests that organisms having these organs have a distant ancestor but such organs have developed during the course of evolution as an adaptation to similar mode of life.