Answer: c. Prospective cohort study
Explanation:
Prospective cohort study is a type of observational study which is used to study large number of subjects which are similar but vary with respect to certain factors required to be considered under the study. This is done to determine how these factors affect the rates of certain outcomes. The subjects are studied under different frames.
Here, in the given study the subjects are the same which is a group of middle aged men. These are at a risk of premature ventricular contractions thus are at greater risk of myocardial infraction as compared to men those heartbeats are regular. Here there are different factors to be observed upon and the subjects are also studied in different time frames thus this condition is an example of prospective cohort study.
Answer:
DNA
Explanation:
DNA I held in the nucleus, because the nucleus is the 'brain's and DNA is the 'knowledge' held there. RNA is coded IN the nucleus, but then leaves and goes into the cytoplasm where it undergoes translation.
Answer:
Mass and distance are the two factors which depend on the magnitude of the gravitational force between two objects.
Explanation:
There is a direct relationship present between mass and gravitational force while inverse relationship between distance and gravitational force. Direct means if one increases, the other also increases while inverse means when one increases, the other decreases. Gravitational force increases when the mass of two objects increase and vice versa while gravitational force increases when the distance between two objects decreases and vice versa.
Answer:
structure is what something does and function is how it does it
Explanation:
