BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
How many varieties of apples are there in the world? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? How many varieties of apples are there in the world? There are enough different varieties of apples in the world to satisfy any, even the most picky taste. There are more than XNUMX of them in England alone. If you look at the whole world, then there will be several times more of them. It is known that the apple was one of the first fruits that people began to grow themselves. The homeland of apples, apparently, southeastern Europe and western Asia. In any case, we know that in Europe various varieties of them were grown already two thousand years ago. The inhabitants of ancient Rome served at least seven varieties of this fruit. Where did such a variety of varieties come from today? At all times, gardeners who grew apple trees in their gardens carried out many experiments with them, trying to get new varieties that were tastier, more prolific, frost-resistant compared to the previous ones. The most widely used method for obtaining new varieties is as follows. A shoot or bud cut from a tree of one species is planted ("grafted") on a young apple tree of another. In this case, the properties of the resulting plant are a mixture of the advantages and disadvantages of the "parent" varieties. Another method is called "cross-pollination". It lies in the fact that the flowers of apple trees of one variety are pollinated with pollen taken from trees of another. Author: Likum A. Random interesting fact from the Great Encyclopedia: How long can a person go without food? Most of us experience discomfort after skipping at least one meal, and if we try to go without food for 12 hours, we will feel completely out of our element. But there are people who seem to be able to "fast" for a very long time. There are reports of numerous records of prolonged fasting, but in most cases there is no medical evidence, and therefore these records are in doubt. One South African woman even claimed to have taken nothing but water for 102 days. In terms of the ability to live for some time without food, there are great differences between living beings. For example, a tick that lives on animals can live without food for a whole year. Warm-blooded animals use up their body reserves much faster. The smaller and the more active the animal, the faster it uses up its reserves. A small bird can starve to death in about five days, and a dog in twenty days. In general, we can say that a warm-blooded animal dies when it loses about half of its normal weight. The weight itself matters a lot. Humans and other living beings live in a state of metabolic equilibrium, which means the need to regain body weight once a certain minimum is reached. Body weight is regulated by thirst, hunger, appetite. When you lack any nutrients in your blood, this is noted in one of the areas of the brain, and you feel hungry. The body requires any fuel (food). And our appetite makes sure that we choose a diet that meets the needs of our body.
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