Dr. kong does a study in which he finds that smoking is correlated to an increased risk of high blood pressure. he publishes his results. then dr. meco does the same study using different participants in another city. dr. meco's work is an example of

Trial reproducibility

Explanation:

The reprocibility is one odf the most important part of the scientific method.

If the trial or investigation is well planned and conducted, the results could be reproduced by any investigator, researching on any place with any sample, as long as the new trial is conducted with the same parameters.  

If the results are not reproducible, the investigation has a bad thecnic and is not usefull.

The correct answer is "replication".

Explanation:

Replication is the practice of performing a study using the same methodology as one study performed before. A common example of replication studies is to conduct a research in a place and then conduct the same research in other place. Dr. Kong performing one more time the study of correlating smoking and risk of high blood pressure but in a different city, is a clear example of replication study.

digestion

it excretes wastes