Propeller is the word you seek.
fastly.
move your moo fastly back and fastly forward then let it roll
fastly apropreatlly
move the light knob counterclockwise and clockwise fastly
fish the fins on fish helps it to move easily in water boats the engine of the boat helps it to move easily sorry don't have a third one
It helps move from different levels of water
my dicktionary
There tail.
No fur so less friction with the water.
A non living "thing" cannot move without a living thing or a force moving it.
Everything pretty much, Water, people, wheelchairs, muscles... Our heart helps us move it never stops beating. Our bodies are designed to move.
their are tubes all around insid a leaf that helps move food and water around