#065 Anatomical Comparison =====================================
Pages 138-139
Instructions: (for page 138)
1. On the diagram handout, color each of the same bones in the elephant and rat skeleton the same color. (For examples, color the femur of the elephant and the femur of the rat red.)
2. Do not reuse a color for another type of bone.
1. On the diagram handout, color each of the same bones in the elephant and rat skeleton the same color. (For examples, color the femur of the elephant and the femur of the rat red.)
2. Do not reuse a color for another type of bone.
Instructions: (page 139)
Answer the following questions below on page 139.
1. Were the bones with the same name in similar places on both the elephant and rat skeleton? EXPLAIN
2. Did either the rat or elephant skeleton seem to have extra bones? EXPLAIN
3. Similar structures in the anatomy of two different species are called homologies. What homologies are shared by rats and elephants?
4. What features would you look for in a fossil to determine if the now-extinct organism was related to a rat and an elephant?
5. How can patterns be used to identify common ancestry?
Answer the following questions below on page 139.
1. Were the bones with the same name in similar places on both the elephant and rat skeleton? EXPLAIN
2. Did either the rat or elephant skeleton seem to have extra bones? EXPLAIN
3. Similar structures in the anatomy of two different species are called homologies. What homologies are shared by rats and elephants?
4. What features would you look for in a fossil to determine if the now-extinct organism was related to a rat and an elephant?
5. How can patterns be used to identify common ancestry?