Question

Differentiate between analogy and homology giving one example one each of plant and animal respectively .
( B) How are they considered as an evidence in support of example of evolution ?

Answer 1

Homology : this refers to simlar anatomy but different functioning .
example : thorn and tendril of bouganivlllea and cucurbita and forelimbs of whale and bats .
Analogy : this refers to similar functioning different anatomy
Example : Eye of octopus and mammals and sweet potao ( root modification ) and potato ( stem modification )
these structures are considered as an evidence of evolution because :
Homology points to development of a similar structure in different directions due to different needs indicating divergent evolution .
2. Analogy point to different structures evolving for the same function indicating convergent evolution .