Fruit flies produce offspring relatively fast and have specific traits, such as eye color and body color/shape. They are easy to observe and their traits are easily traced throughout the next generations.
Layering.
Hope this helps (:
-Payshence xoxo
By fishing and cultivating tara
It is a polar molecule I'm pretty sure. And hinataaaa
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors.
Hope that helps.