1. ¿Por qué los cuatro elementos (tierra, fuego, viento y aíre) fueron esenciales para la historia de la Tabla Periódica y de la Química? 2. ¿Qué aportes ha dado la Tabla Periódica a la Ciencia y la Tecnología? Escribe 2 ejemplos. 3. ¿Qué beneficios le ha traído a la familia el descubrimiento de la tabla periódica? 4. ¿Qué otro nombre recibe cada grupo de la tabla periódica?

Although there are a limited number of amino acids many different types of proteins exist because..

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed