I'm not sure about other Protozoans but Paramecium, a freshwater ciliate, pumps out excess water with it's Contractile Vacuoles.
in water
He saw them in a drop of water.
There are a few harmful effects of protozoans. They can pollute water, reduce the fertility of soil, and destroy the habitats of plants and animals.
Algea, protozoans, and other microorganisms can be found in most pond water.
marine protozoans transferred to fresh water will
Elodea is not sterile and they will have bacteria, algae, and even protozoans on the leaves and stems. However, the bacteria and the protozoans will use the oxygen to dissolve into the water.
protozoans are unicellular organisms
No Protozoans do not have skeleton. They are unicellular organisms.
fifty thousand differant ones that is how many there is
The study of protozoans is part of microbiology.
Protozoans are in the Kingdom Protista.
Malaria is produced by parasitic protozoans.