How do snakes reproduce?

Serpents are the group of sauropsids that form the suborder snakes. They are also known as snakes (suborder ophidian). Its most striking and popular features are the evolution of the body for the legless scroll and the production of poison. They have an elongated tubular body and lack limbs; despite this, snakes can crawl, swim, […]

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How does a cardiac pacemaker work?

The heart rate at rest for a healthy adult, it is considered within normal limits when it is between 60 and 100 beats per minute. A slower or faster pace, as well as a irregular rhythmmay indicate the existence of some heart problem. Some of these problems can be corrected with implantation of a small […]

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How do starfish reproduce?

The asteroidsbetter known as sea ​​starsthey are animals echinoderms that make up their own class, the class asteroidwhose most descriptive characteristic is the pentaradial symmetry which gives it the appearance of a five-pointed star, although some species may have more than 5 arms. Colloquially, brittle stars or brittle stars (class Ophiuroidea), another type of echinoderms […]

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How does a catalyst work?

In chemistry, a catalyst is called any substance that affects the rate of a reaction altering the activation energy needed for the reaction to start. The term catalyst is generally reserved for those that increase the rate of reaction (positive catalysis) and are called inhibitors to catalysts that decrease it (negative catalysis). The catalyst performs […]

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How does a skeletal muscle contract?

The contraction of a muscle is the physiological process by which the muscle fibers develop tension. This tension is produced by actin and myosin interaction in the filaments of muscle fibers and is activated by a nerve impulse from the Central Nervous System. The opposite process, muscle relaxation, is the return of the fibers to […]

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How does a glacier form?

Glaciers are described as persistent ice dams that show flow characteristics propelled by its own weight. They form in polar and high mountain areas where there is snow that does not disappear during warm times, so it accumulates and compacts until it forms a known dense ice. glacier ice. The formation of a glacier is […]

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How does an autoclave work?

Sterilization is a process that destroys, kills or disables any life form and biological agents, including bacteria, viruses, spores, prions, and single-celled eukaryotes. Its application is very important in various fields, especially in medicine and research. Sterilization can be achieved by various physical methods by applying heat or other forms of energy such as radiation, […]

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how does fog form?

Fog is a meteorological phenomenon caused by moist supersaturation of air so that it can no longer hold steam and they form suspended water droplets. According to the Glossary of the American Meteorological Society, fog is defined as water droplets, or water crystals if the temperature is very low, suspended in the atmosphere in the […]

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How does bat echolocation work?

Echolocation, sometimes called bio soundis the ability that many animals have to know the position of other animals and objects in the environment through emission of sound waves and reception of their echosimilar to how a sonar works (SWund Nnavigation Ana Ranging). Echolocation is typical of several mammals, such as cetaceans (whales, dolphins) or bats, […]

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How does the Cori cycle work?

The Cori cycle, also called lactic acid cycle, describes a metabolic pathway in which lactic acid produced in muscle cells by anaerobic glycolysis reaches the liver and is converted back into glucose. This cycle was explained for the first time in 1929 by the marriage of biochemists Carl Ferdinand Cori and Gerty Theresa Coriwinners of […]

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How does the ear work?

The ear is a sensory organ made up of various structures designed to perceive the mechanical waves that propagate the sound and transmit them to the brain. In mammals, moreover, the ear is also responsible for equilibriumception (sense of balance). structure of the ear The human ear is usually studied in three different parts: the […]

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How does the ozone layer work?

The ozone layer is an area of ​​the upper part of the stratosphere containing some levels of ozone (O3) higher than the rest of the atmosphere. While the average concentration of ozone in the atmosphere is 0.3 ppm, in the ozone layer can reach 10 ppmwhich makes it contain 90% of all atmospheric ozone. In […]

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