From the point of view of nutrition, protists are divided into plant and animal. Positive effects of plant protists in nature and the human body:
biological water treatment;
they are used as fertilizer, so they are used to fertilize the soil.;
alginic acid produced by algae, used in the textile industry as an impregnation;
Protists are valuable components of water and mineral salts;
they are used in the paper industry for the production of cardboard and paper;
Agar obtained from red algae is used in the bakery and confectionery industries.;
They are used for jelly, ice cream, or mayonnaise.;
They are also used in medicine and pharmaceuticals (for example, creams);
Fucus (with a lot of iodine) is used to make herbs.;
Chlorella substances are used for antibiotics;
algae are used for the laboratory synthesis of B vitamins.;
Agar and acid are used for bactericides and for medicines used in the presence of parasitic worms.;
Algae is found in ointments that lubricate burn wounds.;
they take part in the cycle of the elements;
large algae are a haven for other aquatic organisms.
In contrast to the negative effects of plant protists in nature and the human body, they are:
Aquatic flowering, which contributes to the death of many aquatic organisms (aquatic flowering is the massive development of certain types of algae, these algae die, forming dead organic substances) that destroy bacteria with oxygen, releasing harmful toxic compounds (for example, hydrogen sulfide).
Their massive presence limits the development of other organisms.
Fish that feed on algae have the worst taste and smell.
Algae become overgrown with vessels, which leads to their overload.
Positive actions of animals as protists in nature and the human body:
Providing food to other animals (e.g. zooplankton),
Some flagella live in symbiosis (in cooperation) with termites (they live in them and digest wood that eats termites);
They take part in the creation of the earth's crust, the armor of circular saws creates mud deposits on the ocean floor, which turn into limestone over the years.;
Limestone stones are processed into chalk;
Their presence is an indicator of water purity.;
They form important links in food chains, are first- and second-order consumers, eat bacteria and algae, and eat crustaceans themselves.;
Purification of water and wastewater from bacteria.
The negative effects of protist animals in nature and in the human body are:
Parasitism on plants and animals, causing their death,
Some protists are parasites that cause serious diseases, such as malaria (caused by malaria), African coma (caused by the Gambian worm), dysentery.
The importance of protists
Positive.
Decoctions are used as animal feed.
Sugar cane is used in the Far East for culinary purposes.
Negative ones.
Green algae have an adverse effect on water tanks and cause (together with cyanobacteria) blooming of water.
They create unpleasant deposits on the walls of the aquarium.
The origin of malaria is a malaria—causing parasite
They cause diseases such as:
— sclerosis
— coma is a fatal disease
— Chuck's disease — affects the brain and lymph nodes
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