Hallucigenia is an extinct marine genus that inhabited the Earth approximately 500 million years ago. Its shape was similar to that of a small worm, but with 14 spines arranged in pairs on its back. In the belly it had seven pairs of tentacles that it used to move. The vast majority of the fossil
The internal opportunity rate is the rate of return on the investment that is applied to the present value calculation. In other words, it would be the expected minimum rate of return if an investor chooses to accept an amount of money in the future, when comparing it to the same amount today. The internal
Anabaena is a genus ofprokaryoticphotosyntheticcyanobacteria, that is, they are unicellular, without a defined nucleus, with genetic material, but dispersed in the cytoplasm. They are shallow water plantonic organisms, barrel-shaped and can form colonies. Cyanobacteria, including Anabaena , are also called blue-green algae, although they are not related to the kingdom Plantae . They are so
The external pterygoid or lateral pterygoid is an important chewing muscle. The term comes from the Latin Pterygoideus lateralis or externus. It is made up of two fascicles or muscle bundles, one upper and one lower. Each muscle bundle fulfills a specific function contrary to that of the other, but they work in a coordinated way.
The emotional function of language , also known as the expressive or symptomatic function, is the manifestation of the language that people use when they want to talk about their moods. That is, it is the ability of human beings to express their thoughts and emotions through words. This happens, for example, when people mourn
The isothermal or isothermal process is a reversible thermodynamic process in which the temperature remains constant. In a gas, there are situations in which a change in the system does not produce variations in temperature, but does in physical characteristics. These changes are the phase changes, when the substance changes from solid to liquid, from
The coat of arms of Trujillo , Peru, was granted on December 7, 1537 by Emperor Carlos V, through a Royal Decree that legitimized the formation of one of the most important cities of the Viceroyalty. Trujillo is the capital of the Peruvian department of La Libertad. It is located on the north coast of
The shield of the Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) represents, through the symbols of its four barracks, the identity and values of the largest house of studies in the Mexican entity of Michoacán. This house of studies is considered a faithful heir to humanism and the ideals of renowned figures such as
Fighting anxiety often requires changing habits, one of the most important of which is diet. You can control this disorder without medication, although you will have to make big changes in your life. In this article I will mention 15 foods to reduce anxiety, inexpensive and that you can find in any supermarket. By themselves
The vapor pressure is one that experiences the surface of a liquid or solid, as a product of a thermodynamic equilibrium of the particles in a closed system. A closed system is understood as a container, container or bottle that is not exposed to air and atmospheric pressure. Therefore, all liquid or solid in a
