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raemyiajackson1
31.07.2019 •
Biology
In the following experiment, what is the independent variable? dr. honeydew would like to test the effect of chlorine on beaker's hair color. to test this he pours heavily chlorinated pool water on the right side of beakers head. to the left side of beakers head he pours pure water. after doing this for several days, only the hair on the right side turns green.
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Ответ:
Chlorine
Explanation:
An independent variable can be define as changable variable, which can be used to determine it's impact over the other variable(s) in the experiment. Dependent variable cannot be changed manually instead changes occur in the independent variable is because of impact of independent variable.
In this experiment, chlorine is the independent variable. The effect of which can be observed on the hair color, which is a dependent variable.
Ответ:
una alimentación saludable y la práctica de ejercicios físicos contribuyen al normal funcionamiento de la tiroides y mejoran el estado de ánimo
Explanation:
La tiroides es una glándula cuya función es secretar hormonas tiroideas tales como tiroxina y triyodetironina, las cuales están implicadas en el crecimiento y el control del metabolismo. Es bien conocido que problemas de salud tales como hipotiroidismo (hormonas tiroideas a concentraciones muy bajas) o hipertiroidismo (hormonas tiroideas a concentraciones excesivamente altas) afectan el estado de ánimo, y llevan a cuadros de estrés emocional como ansiedad y depresión. Una alimentación balanceada basada en alimentos ricos en yodo (pescados del mar, huevos, camarones) y zinc (maní, carne, semillas de calabaza, almendras), como así también el ejercicio físico regular, pueden producir el restablecimiento de los niveles normales de tiroxina y triyodotironina en personas con hipotiroidismo, lo cual ha sido asociado con una mejora inmediata en el estado de ánimo.