Which statement best explains why a research question needs to be focused?

It needs to be related to the topic

Explanation:

Because if the question is not related to the topic, then your'e question will be  answered inaccurately and not related to the question you are asking.

your welcome BTW.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.

a) "how old man winter was driven back " and "ormuzd and arimanes"

hope it