All of the above . because of today society
Deciding whether a study will compare different groups of individuals or examine changes within the same group of individuals involves a decision about the research <u>des</u>ign.
Explanation:
Behavioral research studies about patterns and their variables of individual and social behavior of a person with response to stimuli (internal or external)
A research design essentially is the blueprint of the research that integrates and interlinks various research components like evidence and data collection, measurements undertaken, analysis and the interpretations made in a coherent, logical and comprehensive way.
Decision about the type of comparison group in group experimental researches is taken during research design to decide about how the comparison should be made to obtain the correct results. It can be compared with an individual to a group, or a control group against an experimental group.
The pattern changes in each group is studied based on the independent variables which changes in the experimental group and is fixed or constant in a control group.
I think it's 270 at birth and then decrease to 206.
FOR EXAMPLE:
Let's say you've been taking melatonin every single night to help you sleep. After a while, you may notice that it begins to take more and more melatonin for it to work like it did the first night you took it. You were taking one per night, but you end up taking 3 per night to get the same effect because your body has resistant to the drug.
ANSWER:
After a while of taking antibiotics, microorganisms in your body may become resistant to the antibiotics (which is potentially dangerous). This occurs when bacteria change to reduce the effects of a drug.