Wisdom teeth are an example of vestigial structures. Vestigial structures are structures that may be inherited to enhance fitness; however, if they are not present in an organism, then there is no real harm to the organism.. The wisdom teeth, if inherited, help a person eat and mechanically digest the food; however, if a person's wisdom teeth are missing, they do not encounter many problems in chewing.
Sarah is correct because genetic diversity occurs over along period of time
C.) 2 N I believe that is the tight answer
Answer:
C Allopatric Speciation
Explanation:
Evolution of two populations of same species into two separate species due to geographical isolation is called allopatric speciation.
In the given example, Isthmus of Panama serves as a geographical barrier and do not allow the interbreeding between Atlantic and Pacific fish populations of the same species.
These populations evolve genetic adaptation to make themselves better suited to the prevailing surroundings. Accumulation of genetic variations over generation leads to their reproductive isolation. Now, these two fish populations serve as two separate species as they can not interbreed.
