(Segundo Ciclo)
La célula
El ser humano tiene muchos tipos de células y cada una cumple una función específica. Por ejemplo, las células óseas mantienen la estructura ósea; las epiteliales están, en la piel y en las mucosas del tubo digestivo, entre otros, y los eritrocitos recogen el oxígeno de los pulmones para llevarlo a todas las partes del cuerpo.
Inverso multiplicativo: Valor de un número al cambiar de posición
El inverso multiplicativo ocurre cuando una multiplicación de números da como resultado el valor 1. Este concepto también es llamado «recíproco». Un ejemplo: El inverso del número 4 sería 1/4, ya que 4 x (1/4) = 1. Asimismo, el inverso de 1/3 es 3, ya que (1/3) x 3 = 1. En el caso del […]
Neurons
Neurons are nerve cells that are specially adapted to receive impulses, which are processed and transmitted through electric signals. Their structure is split into three parts: – Cell body or soma: it is made up of a nucleus, a nucleolus and cytoplasm. It is the most vital part of the neuron. – Dendrites: they are […]
Tourist geography, an unexplored zone
Atacama has great tourism potential, but it has not been visited or explored very much. According to the Statistics Unit of the National Tourism Service (Sernatur), in 2007, out of the 2,245,576 foreigners that entered our country, only 1,995 visited this zone. It is also worth pointing out that this region presents the fewest amount […]
Radical Governments
Unfortunately, the economical tranquility given by the second government of Arturo Alessandri wasnt sufficient to completely stabilize the country. Differences between the governing parties eventually subtracted the support from the radicals, who, from the opposing side, got important triumphs.
The lungs
The lungs are two organs that have tubes filled with air inside of them. They are located within the thorax, protected by the ribs, on both sides of the heart. Their main function is to get red blood cells oxygen and expel carbon dioxide from the body. This process is known as hematosis. Each lung […]
