Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What is an amoeba? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Comments on the article Comments on the article

Did you know?

What is an amoeba?

Did you know that the amoeba is considered an animal? This gelatinous unicellular creature is so small that it can only be seen under a microscope. The main amoeba species live in freshwater rivers and ponds. But there are species that live at the bottom of salty reservoirs, in moist soil and food.

The amoeba is constantly changing its shape. She moves, pushing forward first one of her half, then the other. Like many jelly-like organisms, the amoeba moves in such a way that it forms a shape called a "false leg," or pseudopodia. When the pseudopodia reaches the food, it envelops it and takes it into the main body. This is how the amoeba eats. She doesn't have a mouth.

Amoeba belongs to the class of protozoa, which are the lowest rank of living beings. She has neither lungs nor gills. But it sucks in oxygen from the water, releases carbon dioxide, digests food, as more complex animals do. Probably, the amoeba also has feelings. When touched or when aroused, she immediately curls up into a tiny ball. Amoeba avoids bright light, too hot or cold water.

In an adult amoeba, the nucleus, a tiny point in the center of the protoplasm, is divided into two parts. After that, the amoeba itself splits, forming new independent organisms. When they reach full size, they again begin to share.

Author: Likum A.

 Random interesting fact from the Great Encyclopedia:

What animal can carry out the process of photosynthesis?

Not only plants can carry out the process of photosynthesis. The sea slug Elysia chlorotica lives on glucose obtained from the chloroplasts of the algae Vaucheria litorea. The slug does this by assimilating these chloroplasts into the cells of the digestive tract. After that, the process of photosynthesis begins - the slug genome encodes the proteins necessary for chloroplasts for this process, and in return receives synthesized glucose.

 Test your knowledge! Did you know...

▪ What is seasickness?

▪ Who was the first to brew coffee?

▪ Why was the lion Vasya killed on the set of the film Striped Flight?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Banana skin flour 07.10.2022

American researchers made flour from a banana skin and added it to the dough. The biscuits they made turned out to be healthier than the biscuits made from wheat flour. To make flour from banana skins, the researchers dried and ground the skins of ripe bananas into a fine powder.

By mixing flour with butter, milk powder, powdered sugar, vegetable oil and wheat flour, they baked a batch of cookies. Scientists have found fiber, magnesium, potassium, antioxidants and other important nutrients in banana peel flour.

In addition, biscuits made with banana peel flour were healthier, lower in fat and protein, higher in phenols, and better in antioxidant activity than regular biscuits.

Other interesting news:

▪ Acer XD1520i Wireless Compact Projector

▪ Stimulation of the temporal cortex improves memory

▪ FiLIP watch for monitoring children

▪ Production of superdiamonds

▪ Proved the existence of immortal quantum particles

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Fundamentals of safe life (OBZhD). Article selection

▪ article Construction mixer. Tips for the home master

▪ article Is it true that in 1576 there was a meeting between the Queen of Pirates and the Queen of England? Detailed answer

▪ article Lamp for the workshop. home workshop

▪ article by Permalloy. Encyclopedia of radio electronics and electrical engineering

▪ Soda Bank article comes to life. Focus Secret

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024