|
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese|
BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
How do insects breathe? Detailed answer
Directory / Big encyclopedia. Questions for quiz and self-education Did you know? How do insects breathe? All living creatures must breathe in order not to die. The process of breathing is simply breathing in air for the purpose of obtaining oxygen and exhaling waste products. The air that we exhale no longer contains oxygen, there is more carbon dioxide and water vapor. The oxygen we breathe in is needed to “burn” certain foods so that the body can digest them. Waste, including water vapor and carbon dioxide, is partially destroyed by the body, and partially exhaled. The simplest form of breathing is probably possessed by jellyfish and most worms. They generally have no respiratory system. Oxygen dissolved in water is absorbed through their skin, and dissolved carbon dioxide is vented out in the same way. That's all that can be said about their breathing. Earthworms - creatures with a more complex structure - have a special fluid - blood, which carries oxygen from the skin to the internal organs and carries carbon dioxide back. By the way, frogs sometimes also breathe in this way, using the skin as a respiratory organ. But she also has lungs, which she uses in case of lack of oxygen. Many insects breathe very unusual and interesting. If you carefully examine their abdominal cavity, you can see many small holes, or pores. Each of these pores is the entrance to a tube called the trachea. It acts like a human breathing tube, or breathing throat! Thus, insects breathe in the same way as we do, with the only difference being that hundreds of breathing tubes can be located on their abdominal cavity. For small creatures such as insects, these tubes do not take up much space. But can you imagine what would happen if people had the same respiratory system? Other organs would hardly have enough space! Incidentally, the rate of breathing (that is, how often we breathe air) is largely dependent on the size of the creature itself. The larger the animal, the slower it breathes. For example, an elephant inhales about 10 once a minute, and mice about 200! Author: Likum A.
Who got the first oil? Oil is one of the most ancient products known to man and the most widely used by him. It is rather strange that in ancient times oil was not used as food in many countries of the world! Hindus used oil as a sacrifice in religious ceremonies. The Greeks and Romans did not eat the oil either, but used it as a medicine to treat skin diseases. They believed that the soot from burnt butter was good for the eyes. The Romans used the oil as an ointment for their skin and hair. In Spain, 300 years ago, oil was sold only in pharmacies. In ancient times, only a few people ate butter, but it was never eaten fresh. It was kept melted and there were even people who especially appreciated the century-old oil. Perhaps the manufacture of edible oil came to Europe from Scandinavia. Today, oil is a very necessary product. This is a very high-calorie food that is quickly absorbed by the body. It also has important properties that allow the oil to stay in the stomach for a long time and provide energy to the body. Butter production begins with the milking of cows. Since the milk of Guernsey and Jersey cows contains a lot of fat, these breeds are called "butter". After the milk is obtained, the cream is removed from it. The cream is then left at room temperature to sour. This gives them a certain taste and facilitates the oil-pressing process. The cream is pasteurized to kill all bacteria and increase the shelf life of the butter. The butter is churned in butter mills to separate the milk fat from the whey. Whey contains no fat at all. Then water is added to the oil, and all this is again thoroughly mixed in a churn to remove all unnecessary components from the oil. After the water is removed, the oil is ready. It is passed between large rollers to make it softer and more uniform in taste and color. Now the oil is sealed and sent to the store.
▪ What keeps the Moon in Earth orbit? ▪ Why is the leatherback turtle not a sea turtle? ▪ What insect has a mechanism for converting solar energy into electricity?
Machine for thinning flowers in gardens
02.05.2024 Advanced Infrared Microscope
02.05.2024 Air trap for insects
01.05.2024
▪ Automotive Suspension Generator ▪ Canon EOS C200 professional camcorder ▪ New frost-resistant raspberry variety with high keeping quality
▪ section of the site Tips for radio amateurs. Selection of articles ▪ article There is something to despair from. Popular expression ▪ article Where was the tomato shown in The Simpsons actually grown? Detailed answer ▪ article Sealed nickel-cadmium batteries. Directory ▪ article A simple beeper circuit. Encyclopedia of radio electronics and electrical engineering
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua |
Random interesting fact from the Great Encyclopedia:
See other articles Section 
Latest news of science and technology, new electronics:
All languages of this page