Answers

2014-09-16T21:00:19+05:30
Homology is the existence of shared ancestry between a pair of structures,or genes,in different species.evolutionary theory says about the homologus structures and identify that some traits have common ancestors.for example : the fore limb of a whale,wing of a bat, leg of cheetah,claw of mole and hand of man.these organs externally look different but internally have same structure.
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