Unit Award Scheme

shown knowledge of

1. why shark skeletons are comprised of cartilage and not bone and what the difference is

2. the structure and function of shark fins

3. the action of two types of muscle and how this contributes to shark movement

4. how shark skin is formed and how this leads to hydrodynamic efficiency

5. how and why a shark's teeth change over its lifetime

6. how shark organs compare to mammals by comparing livers with lungs/gills.