Homologous structures, such as a bat wing and whale flipper,?

A. have the same underlying structure due to inheritance from a common ancestor.


B. are similar externally but have different basic structures and were probably not derived from a common ancestor.


C. are the result of pairs of chromosomes that are identical in bats and whales.


D. are structures that did not develop in response to natural selection.


E. are formed from genes on the same pair of chromosomes.

Homologous structures, such as a bat wing and whale flipper,?
The answer is A.





Homologus structures have similar(homo) bone structures, but they are used in different ways. The bat and whale have a common ancestor(CA), but they each have evolved beyond their CA. They share a similar structure, but they are not exaxtly the same. As a bat hase long fingers and a whale has shorter fingers.
Reply:Definitely A