How does the existence of homologous, analogous, and vestigial structures support the theory of evolution?

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

Which muscle is responsible for inhalation ?

What would happen if the krill were removed from the food web