Answer:
Not always, however, it is possible.
Explanation:
BMI is essentially an average of how much you weigh for you height. It isn't always accurate because there can be a really buff guy (where muscle weighs more than far), however, he is really short. This would mean his BMI would be very high. But even though his BMI is high, his cardiovascular health is probably still top notch. On the other hand, if someone has a high BMI because they just weigh alot and they have an average height (a likewise high BMI), they are probably going to have bad cardiovascular health.
Answer:
Retrospective cohort.
Explanation:
The chemical substances can cause mutation in the organism's DNA. This mutation can cause different types of cancers like leukemia, sarcoma and carcinoma.
The retrospective cohort study is performed in the group in which the specific disease and its outcome is already known. This study mainly focuses on the facts that whether the individuals were earlier affected by the particular disease or not. The case given in the question represents retrospective cohort.
Thus, the answer is retrospective cohort.
Having something accessible like a heartrate meter. Use your pointer and middle finger and feel on the underside of the side of your chin. Find a beat and that is your pulse, while walking you can count how many times that beats in 30 seconds multiply by 2 and that is your heart rate.