<span>¡La opinión de un químico sobre el mundo no es tan estrecha como se podría pensar! Sí, empezamos con el átomo, y luego pasamos a las reglas que gobiernan los tipos de unidades estructurales que se pueden hacer con ellos. Se nos enseña tempranamente a predecir las propiedades de la materia en masa de estos arreglos geométricos.
Y luego llegamos a H2O, y estamos sorprendidos al descubrir que muchas de estas predicciones están muy lejos, y que el agua (y por implicación, la vida misma) ni siquiera debería existir en nuestro planeta. Pero pronto aprendemos que esta pequeña combinación de tres núcleos y ocho electrones posee propiedades especiales que lo hacen único entre los más de 15 millones de especies químicas que conocemos actualmente. Cuando nos detenemos a reflexionar sobre las consecuencias de esto, la química pasa de ser una ciencia arcana a un viaje de maravilla y placer mientras aprendemos a relacionar el mundo microscópico del átomo con el mundo mayor en el que todos vivimos.</span>
Answer:
B- The Job it does in the organism
Explanation:
The size and shape of a cell are related to its function.
The author supports the statement by explaining the different theories about yawning, this includes theories and some that are still studied.
The author states that scientists have not yet reached any consensus regarding theories about why humans yawn and argue this claim by explaining the following theories about yawning:
- In Antiquity: Hippocrates' Yawning Theory focused on the respiratory system by hypothesizing that yawning precedes fever and is a way of removing polluted air from the lungs.
- In the seventeenth and eighteenth centuries: Most theories focused on the circulatory system. These theories posited that yawning causes an increase in blood pressure, heart rate, and oxygen in the blood.
- Today: Dr. Robert Provine, in 2005 stated that yawning is associated with changing a state of behavior.
- Gallup in 2008 proposed that yawning is related to a way of cooling the brain's temperature.
- In 2011, Dr. Andrew Gallup and Omar Tonsi Eldakar stated that yawning is related to the outside temperature, that is, when the temperature is warm, the body yawns less frequently.
According to the above, it can be inferred that scientists have not reached a consensus on yawning because all have raised different theories to explain its function.
Learn more in: brainly.com/question/8945611
A carbohydrate composed of two covalently bonded simple sugars is called a <u>disaccharide</u>.
Carbohydrates or sugars are one of the four main categories of the macromolecules that make up living things (the other three being nucleic acids, proteins and lipids). It can either be a simple sugar (sugar monomer or monosaccharide) or a polymer of simple sugars.
Carbohydrates are composed entirely of carbon, oxygen and hydrogen atoms. Simple sugars or monosaccharides contain six carbon atoms, twelve hydrogen atoms and six oxygen atoms. When two monosaccharides bond covalently, they form a disaccharide.
Some examples of disaccharides include:
- Sucrose or table sugar - It is made up of one glucose molecule and one fructose molecule
- Lactose or milk sugar - It is made up of one glucose and one galactose molecule
- Maltose or malt sugar - It is made up of two glucose molecules.
Learn more about carbohydrates here:
brainly.com/question/14614055
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