Observation of a Shark

Abstract:
The lab was an introduction of the external anatomy of the shark under visual observation.
Introduction:
Sharks are mostly marine fishes, and some live in fresh water. Their fins have different functions such as lift, propulsion, and stabilizing. There are one or two fins present along dorsal midline called first and second dorsal fin. If the spin is the orgin, it is mainly then used for defense. Pectoral fins start from behind the head and extend outwards. The purpose of these fins is for steering and help the shark lift in different directions.…