quiz!!

Answers

1.) The picture above shows evidence for evolution because it depicts the similar characteristics of a whale throughout its lifetime. All the animals appear to have distinct characteristics that are carried through the timeline. It also depicts a common ancestor for all the different animals that have seemingly evolved from the mesonychid.

 

2.) E, North America

 

3.) a dragonfly, bird, and bat are all forms of analogous structures that serve as evidence for convergent evolution. this means that their are many similarities, but the underlying structure is completely different.

 

4.) The  Common Decent Lab shows evidence through DNA by depicting different animals with minimal differences in their DNA. This shows evidence for a common ancestor, therefore supporting the theory of evolution. One is the difference between a human and a Chimpanzee. Scientists have found there to be only a 2.5% difference in the DNA. Another example is the DNA of a human and an Old World Monkey. Their difference is only 9%!!! Proving that humans are really not  that different from primates.

 

5.) Homology is the when structures have enough similarities to prove they descended from a common ancestor. One example is the many similarities between the wing of a bat and a bird, both structures are used for flying and are shaped similarly. Another example is a human and an orangutan, both have five fingers used for grasping, and the structure of the arm bones are also very similar.