Proteins are made in the ribosomes. These are a part of a cell. They get the instruction on how to build protein from the nucleus.
Answer: Because scientists often repeat one or more steps several times.
Explanation: The scientific method is described as nonlinear because scientists often repeat one or more steps several times. The correct option among all the options that are given in the question is the second option or option "b".
Homeostasis I believe
Hope this helps
There are a lot of factors that can increase serotonin in the brain. For example increasing exercise, sunlight or vitamin B6 could all create a natural increase of serotonin. serotonin is also greatly affected by stress levels so one could say that increased relaxation would increase serotonin.
