Nektonic organisms are those that swim freely, such as fish and whales.
Fish
Fish can do this.
A Plankton is an example of a living organism that can swim feely in the ocean
ciliates
these organisms can swim,are kind of small,and are bascly like a fish.
Nekton
Ciliates.
toil
you call them organisms
Organisms that eat both animal and vegetable matter are call omnivores.
Study marine enviroments, populations and organisms. They swim. Daily.