In this experiment, the control was the group of rats that received an injection of saline, instead of vitamin D. When conducting scientific experiments testing the effect of certain variables on a condition or a process, the experimental design needs to include a control group. Any observed differences between the control and the experimental group will be attributed to the independent variable of the experiment, in our example the vitamin D.
More specifically, in this example, the control group lived under the same conditions as the experimental group and received the same treatment (daily injections) but the only difference was that they were given saline instead of vitamin D. So, by using the control group, researchers made sure that any differences observed in the growth rate of these two groups of rats, were not due to experimental errors or bias.
Answer:
No.
Explicación:
No, no es posible extrapolar los resultados obtenidos en el laboratorio a la situación pandémica actual debido a las diferentes condiciones ambientales. Pero existen altas posibilidades de una estimación incorrecta porque el laboratorio tiene un entorno de control donde las condiciones ambientales están en un rango normal, mientras que el entorno exterior tiene un entorno diferente donde los factores ambientales actúan sobre la situación, por lo que la extrapolación no será correcta.
D. is the answer BTW this should be on chemistry topic not biology
Answer:
A is Jupiter, B is Neptune, C is Saturn, D is Uranus
Explanation: