Asked in Fish
What does a fish use to propel it forward?
Asked in Grammar
Is it grammatically correct to phrase propel forward?
Asked in Physics, Animal Behavior
How can fish propels itself forward by swishing its tail back and forth?
Asked in Birds
How do birds and insects propel themselves forward?
Asked in Care of Fish
Does the fish use a caudal fin for steering its direction?
The caudal (tail) fin is the driving force used to propel the fish forward. The paired fins are mainly used for brakes and steering and the dorsal and adipose fins are used as keels on a yacht/boat in most fish. There are variations on this. Sea horses are one example where the dosral fin is used for propulsion but there are many other variations.
Asked in Powerboats
What are analogies for flagella?
A flagellum is a "whiplike" tail that serves to propel a cell forward. A fish would use its tail to help it move forward. Also, a powerboat is propelled by a rotor, which operates much like a flagellum (although it may be important to note that flagella are often longer than the cell; whereas boat motors are relatively small).