Cyanobacteria is a prokaryotic organism often referred to as blue-green algae. What are the structural features of cyanobacteria? Habitats and conditions of existence, occurrence and study, specialized structures in the composition of cells. Trichomes, heterocysts, their role. Last modified: 2025-01-23 12:01
Secondary education and schools
Always when studying various terms, the most interesting are those that have many interpretations. League is just such a word. It is used in many areas of life and, accordingly, differs in each of them with its nuances. Therefore, let's study what a league is in detail. Last modified: 2025-01-23 12:01
Behind the term "ordinary person" lies a simple meaning. About who are ordinary, mediocre people - read the article. Last modified: 2025-01-23 12:01
Quite often you can hear when in extreme heat they say: "What hell!". The meaning of the word is known to many - it is the high temperature of the surrounding air, in other words - unbearable heat. However, this term has another meaning, which is less often invested in it. The meaning of the word "inferno" and its synonyms will be discussed in this article. Last modified: 2025-01-23 12:01
What is the biotic cycle? As a closed system, it has been successfully functioning for several billion years. Dead animals and plants are processed by insects, protozoa, fungi, bacteria and other decomposers (decomposers), which destroy them, turning them into mineral or simple organic compounds that enter the soil and are again consumed by plants. The continuity, isolation of this process is ensured by the decay and decomposition of the final products. Last modified: 2025-01-23 12:01
Distillation is used to separate liquids from non-volatile solids, as in the distillation of spirits from fermented materials, or to separate two or more liquids with different boiling points, as in the production of gasoline, kerosene, and lubricants from petroleum. Last modified: 2025-01-23 12:01
The origin of Lake Baikal is tectonic. It is in Siberia; is the deepest in the world. The lake and all adjacent territories are inhabited by quite diverse and unique species of animals and plants. An interesting fact is that in the Russian Federation Baikal is called the sea. Last modified: 2025-01-23 12:01
There are situations when any person wants to be far from civilization, alone with nature. And not every city dweller knows how to navigate the terrain. Last modified: 2025-01-23 12:01
Russian writers in their works sought to find the image of the ideal Russian woman. They brought out its best features, which are inherent in our people. Few in the literature of the world can one find such beautiful and pure representatives of the weaker sex. They are distinguished by a loving and faithful heart and unique spiritual beauty. Last modified: 2025-01-23 12:01
Each of us at least once in our lives has come across the term "residence". The word is usually associated with luxurious, rich mansions and castle-like houses. A well-groomed territory and a yard are an obligatory addition to chic places of this type. The grandeur of the residences causes us admiration, delight, and sometimes respect. Last modified: 2025-01-23 12:01
In the article we will talk about the structural features of birds, what is their skeleton. Birds are interesting in that they are the only group of vertebrates (except bats) capable of not just hovering in the air, but of real flight. Their structure is well suited for this purpose. Last modified: 2025-01-23 12:01
Many rivers of various lengths flow through the territory of Ukraine. Studying them will help to better understand the geographical features of this country. Last modified: 2025-01-23 12:01
This creature of nature has a rather unusual appearance. The shrimp is an aquatic creature, and it's fun to follow their behavior while snorkeling, for example, in tropical waters. If you move the lush algae, these crustaceans start to jump out like grasshoppers from the grass. Last modified: 2025-01-23 12:01
The ability to convey an unlimited number of meanings with a limited number of signs is a feature of a person that distinguishes him from animals. The prehistory of informatics reflects the long way that mankind has traveled, learning to transfer data in time and space. Last modified: 2025-01-23 12:01
You can often hear a disparaging phrase: "he is in debt all over, like in silks." So they say about a person who often lives "in debt", borrows money from others. And these loans are so frequent and numerous that the debtor is indebted to everyone and everywhere. We talk like this. But where did the phrase come from? What does she mean? And what are the versions of the origin? Let's talk about it in the article. Last modified: 2025-01-23 12:01
Starting from middle school, children learn to perform morphological parsing of the verb. For the first time, the teacher will show an example for the children, and later they will easily perform it themselves. In order to correctly complete this task, you need to know what features the verb has, the signs that it has, its role in various types of sentences. Last modified: 2025-01-23 12:01
Do you want to diversify your child's leisure time? Play exciting puzzles - rebuses. This fun is not only interesting, but also very useful, develops imagination, ingenuity and logic. Rebuses teach the child to quickly process data and build them in the correct sequence, expand vocabulary and develop memory. Last modified: 2025-01-23 12:01
The article tells about the actual capital of the Palestinian Authority. It also briefly reports on the history of the conflict around Jerusalem between Palestine and Israel. Last modified: 2025-01-23 12:01
Iran is a state that is widely spread in southwest Asia. Here you can see not only amazing nature, but also dilapidated ancient cities, statues and runes of temples. Snowy peaks, unique monuments, warm sea - this is how you can briefly describe Iran. The country's capital Tehran is considered one of the largest cities in Asia. Last modified: 2025-01-23 12:01
In our article you will find a complete list of Scandinavian countries. In addition, we will tell you about the main geographical, historical, cultural and ethno-linguistic features of this region. Last modified: 2025-01-23 12:01
Stronghold - what is it? The interpretation of this word may cause difficulty due to the fact that it is obsolete. And it is also used in a figurative sense when it comes to a high style of presentation of the material. Detailed information that this is a stronghold can be gleaned from the proposed article. Last modified: 2025-06-01 07:06
The article talks about what receptors are, why they serve a person, and, in particular, discusses the topic of receptor antagonists. Last modified: 2025-01-23 12:01
Considering the preposition as a part of speech, it should be noted that this is a function word. It expresses the dependence of pronouns or nouns on other words in a sentence or phrase and participates in managing them. Last modified: 2025-01-23 12:01
A feature of deuterostomes is that during the development of the embryo at the site of the formation of the primary mouth, the formation of the anus occurs, and the mouth subsequently appears in a completely different place. In other words, we can say that the embryo has a mouth opening at one end, and the adult is in the opposite place. Last modified: 2025-01-23 12:01
In this article you will find the answer to the question of which animals are insectivorous. Many of them you have seen many times, and some you may have never even heard of. Last modified: 2025-01-23 12:01
When a man and a woman decide to fill their lives with children's laughter, they find themselves at a crossroads. On the one hand, a child is happiness and joy, and on the other, a great responsibility. Let's try together to figure out what the concept of "provide the child with everything necessary" includes. Last modified: 2025-01-23 12:01
How to write: neither anything or nothing? When do we use the first option, and when do we use the second? What rules should be followed in order not to make mistakes when writing this or that spelling. And what part of speech is it?. Last modified: 2025-01-23 12:01
What is a rhombus? What is its definition and what kind of figure is it? What is the height, what is the diagonal of the rhombus? What properties and features does this figure have? How to find the area of a rhombus and the radius of an inscribed circle? And what concept do dictionary writers put into the word "rhombus"?. Last modified: 2025-01-23 12:01
It is known that in European countries the highest nobility was divided into various titles. For example, in Germany there was the title of margrave, which in France was renamed the word marquis. And what is the meaning of this word? What kind of people were given this title?. Last modified: 2025-01-23 12:01
What is the subway? The etymology of the word "subway" and its origin. Who, where and when created the subway. Features of this type of transport. Which subways are the most popular? Brief description of the most famous subways in the world. Last modified: 2025-01-23 12:01
What is a millimeter and what is a centimeter? What are these physical quantities? How to convert millimeters to centimeters? How many millimeters are in one centimeter? What is a square centimeter, and how many millimeters are in a square centimeter?. Last modified: 2025-01-23 12:01
What are service words and in what cases would it be appropriate to use them? How to make a sentence correctly if you need to use function words? In general, what is a service word, what does it mean and what is it intended for?. Last modified: 2025-01-23 12:01
What words do you associate with the noun "guest"? For example, with the words "permanent", "stand", "cost". I wonder if the real meaning of this word has similarities with one of these associations? In this article we will talk about the meaning of the noun "guest", its morphological features and select synonyms for it. Last modified: 2025-01-23 12:01
The computer age allows people to easily look into all corners of the globe. No doubt, the virtual sky and earth, seas and rivers, trees and bushes are bright, impressive, fantastic. But they are conditional! Take the opportunity to dive into a living, dynamic, alluring reality. Last modified: 2025-01-23 12:01
According to historical data in a country like Egypt, the population began to form about twelve thousand years ago. Then tribes from North and East Africa came to its territory in search of fertile lands. Last modified: 2025-01-23 12:01
About 10% of the world's population is concentrated in Europe. More than forty states are located on its territory. What are the areas of European countries? Which states are the smallest and which are the largest?. Last modified: 2025-01-23 12:01
Peat moss is called swamp or sphagnum moss. The taxonomy of its species remains a controversial issue, as botanists have completely different points of view. Varying from pale green to deep red, these plants can reach a height of 30 cm. They form dense stands around ponds, in marshes, on wet, acidic rocks, and on lakes from tropical to subpolar regions. Last modified: 2025-01-23 12:01
The word "riviera" is associated with a picturesque and warm sea coast. But there are other meanings. Last modified: 2025-01-23 12:01
In folklore, including proverbs, the Russian people have collected all their wisdom, which will be useful for modern people. Last modified: 2025-01-23 12:01
Proverbs about good deeds are well-aimed folk sayings with great historical stability, passing from generation to generation. Last modified: 2025-06-01 07:06