Organisms that swim are generally referred to as "swimmers." This category includes a wide range of aquatic animals, such as fish, marine mammals, amphibians, and some invertebrates. Depending on their habitat, they may also be classified as "plankton" if they drift with ocean currents, or "nekton" if they can actively swim against currents.
Fish
Fish can do this.
Nekton is where organisms swim freely:)so like yea!
A Plankton is an example of a living organism that can swim feely in the ocean
ciliates
toil
these organisms can swim,are kind of small,and are bascly like a fish.
The swimming bugle call indicates either the beginning of swim period or for cavalry to swim their horses across a body of water.
Nekton.
you call them organisms
Organisms living in the pelagic zone that can swim are referred to as pelagic swimmers. These organisms are adapted to a life of constant movement in the open ocean, utilizing their swimming abilities to navigate and forage for food in the vast water column.
Study marine enviroments, populations and organisms. They swim. Daily.