Viruses and viral diseases
The virus is an infectious agent that does not have a cellular structure, and is capable of reproducing only within cells of living organisms. For this they are referred to…

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Flies and their role in nature
Flies are very common flying two-winged insects. They inhabit practically all warm areas of the planet, delivering many problems to living organisms, including people. After all, flies are the carriers…

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Properties of Raspberry
Raspberries are a small plant of small size (semi-small), growing in gardens, forests (often in the fields of felling) and on the banks of rivers. It is famous for its…

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but also on the

Plains of our planet

Plains are areas of the earth’s surface, with a slope of no more than 5 °, and oscillations of heights of no more than 200 meters. This means that the plains do not necessarily have to be even areas of land, as many people think. They can have both flat relief and hilly. And they can be located not only on land, but also on the ocean floor (deep-water plains), on the shelf (shelf), and at the foot of the continents (sloping). Continue reading

Overpopulation of the Earth
Overcrowding is a surplus of population in relation to livelihoods or the demand for labor. That is, if not all of the population of the planet is in demand, and…

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Tiger is the world's largest cat
Tigers are a kind of mammals that belong to the cat family. They represent fairly large, fast and strong animals, making them dangerous predators. This is evidenced even by their…

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