Answer:
Your question is poorly written, but as far as what was read the best thing would be a longitudinal study since you could see the evolution over time of the twins.
Explanation:
Longitudinal studies, unlike cross-sectional studies, are studies that analyze a factor in a population over time, thus analyzing the possible variables that occurred in those years, months or days. In simple words, the evolution over time is what a longitudinal study is based on (On the other hand, not a transversal one, since it would investigate a specific problem at a specific moment in time)
Answer:
The guy who cares about his health will be stronger, healther, more likely to be obese etc. However the guy who doesn't care about his health will more likely be obese, weaker, and not as healthy.
Explanation:
Answer:
a person paying for a service such as a haircut
Explanation:
a consumer is someone who buys things, I'm pretty sure
