Paleontologists look for shared body structures in different species. There are many different body structures and some of them can be difficult to find. Which of the body structures in the list can you find in each of the species below?
Circle the structures that the Mystery Fossil does have, crossing out the ones not present:
Circle the structures that the Whale does have, crossing out the ones not present:
Circle the structures that the Wolf does have, crossing out the ones not present:
Which bone structures are similar between the Mystery Fossil, whale, and wolf?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor based on body structures
Based on your answer to Question 1, what evidence do you have to support which structures a common ancestor of whales, wolves, and the Mystery Fossil share? Explain.
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor based on body structures
Identify the ‘descendant’s and the ‘common ancestor population’ shown below.
Identify the ‘descendant’s and the ‘common ancestor population’ shown below.
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor based on body structures
How can you use structural evidence to help support why Species B and Species C are related species?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the chronological difference between animal species with a common ancestor
