Breathing, moving blood throughout the body, and so forth.
The whale's flipper and tail flukes and fish fins are analogous structure as they have different structural formation but they perform the same function.
Flipper and tails are locomotory organs in the whale and helps the whale in propelling similarly fins in the fish assist the fish in swimming. Both the strcutures have evolved differently and are made of different materials.
Answer:
Smooth Muscle
Explanation:
In the digestive tract it's called the muscularis mucosa.
<span>I believe you are looking for the term, Dichotomous Keying.</span>
