Chemical-Polluted River Introduction Fundamental to life on our planet, water has become a concern in all parts of the world. Irrational use and pollution of rivers, oceans, seas and lakes may soon lead to a lack of fresh water if there is no drastic change in the way humans use and treat this natural good.

Paramecium: ciliate example What they are - biological definition Ciliates are protozoa that move through the movement of cilia. In some ciliate species, eyelashes are also used for food intake. These living things belong to the phylum Ciliophora. They can live in water or as parasites on the inner body of animals.

Sulfolobus sp .: example of archaebacteria What they are (biological definition) Archaebacteria are prokaryotic beings belonging to the Archaea group. They are primitive bacteria, and there are only about twenty species. Key Features - Possess the ability to live in places where living conditions are extremely adverse for the vast majority of living things.

(Enlarged) image of a mite What they are - biological definition Mite is the common name of approximately 30,000 tiny, tick-like arachnids with their head, thorax and abdomen united in a segmented body, but much smaller and impossible size to be seen with the naked eye.

Fox: a carnivorous mammal Summary of the main information and features: - The fox is a carnivorous mammal (food based primarily on meat from other animals). It feeds mainly on small rodents, rabbits, fish, eggs, fruits and insects. - Fox habitats are temperate regions.

Octopus: tentacles with suction cups What they are - biological definition Mollusks are invertebrate animals that have long, viscous bodies. Some species of mollusks, such as oysters and shellfish, have a protective shell. Mollusks can be divided into: Gastropods Mollusks that have contractile tentacles and spiral-shaped carapace.