What is a pull factor? a reason to leave a place a reason to come to a place a reason to purchase a new house a reason to get married and start a family

The correct answer is - a reason to come to a place.

The pull factors can simply be defined as reasons to come to certain place, or rather to migrate to a place that attracts the individual or group of people.

The pull factors are numerous, but the most common ones are the good economics, better opportunities in life, better education, safety, more suitable politics etc.

This is actually what makes the people migrate to certain places, and prefer certain places over other places. The people that live in developing and less developed countries are very attracted by the countries that are well developed, which are mostly the countries of the so called Western world. The reason for that is that they will have much better life in those countries, and all the aforementioned pull factors are in place there, thus they are the first ones on the list for moving in.

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explanation:

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.