| (i) There are patterns in the fossil record that suggest other species have diverged from a single ancestor species. |
| (ii) There are biogeographic patterns in the distribution of species, for instance distinct bird species on an island tend to resemble one another, suggesting a common ancestor. |
| (iii) There are common stages in the early embryological development of organisms representing several distinct vertebrate groups. |
| (iv) Anatomical structures, such as forelimbs, in different groups appear to be modified versions of structures that might have been present in a common ancestor. |
A) These are the example of a macro evolutionary process.
B) They are the evidences for Lamarck's theory of inheritance.
C) They are the evidences for Darwin's theory of common descent
D) They are the examples of natural selection which occurs within populations, where artificial selection does not occur.
Correct Answer: C
Solution :
[c] The given statements are the evidences for Darwin's theory of common descent. A group of organisms share common descent, if they have a common ancestor. There is strong quantitative support for the theory that all living organisms on Earth are descended from a common ancestor. Charles Darwin proposed the theory of universal common descent through an evolutionary process in the 'Book Origin of Species'.
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