Explain with an example for each, how the following provides evidences in favour of evolution in organisms: |
(a) Homologous organs |
(b) Analogous organs |
(c) Fossils |
Answer:
(a) Homologous organs: Study of homologous organs suggests that the organs having same structures but performing different functions have evolved from a common ancestor. e.g., Forelimbs of a frog, lizard, birds and man. (b) Analogous organs: Shows adoption of organs for common use. e.g., Wings of butterfly and wings of bat. (c) Fossils ? Provides the missing links between two species. e.g., Archeopteryx
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