Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?

Give an example of characteristics being used to determine how close two species are in evolutionary terms.

In what way is homologous organs evidence for evolution?

Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually?

Give reason for your answer.

Name the various tools of tracing evolutionary relationships which have been used for studying human evolution.