Scientists in different parts of the world study the path and speed of a newly discovered comet. if the results of the studies are identical, they would most likely be

The correct answer would be - Valid or reliable.

Explanation:

The validity or reliability of a study is a measure of an experiment or studies that helps in to check or test if a study is correct or not. It helps in the determination of the study method and explanation of the phenomena of particular study.

The reliability or validity of a study can be established by same results or conclusions by repeating the study or experiment every time.

Thus, the correct answer is - valid or reliable.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: