<span>The population explosion was caused by two things. One was the
natural birthrate of the colonists. Partly because of the time-honored farm family tradition that large families meant more people to work (and maybe because there wasn’t much else to do on those long winter nights in the country), the size of many American families was astounding.
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But the growth was by no means all from within the colonies. Immigration was the second factor in the population explosion. It continued at a brisk pace, not only from England but also from other Western European countries.
Tolerance
When you do anything (especially drugs) you need to do more and more of it to get the same sensation you did when first doing it.
Answer:
Integrative medicine.
Explanation:
As the exercise explains, the blending or combining of aspects of conventional Western medicine with those of complementary and alternative medicine is called integrative medicine. IM (Integrative medicine) takes account of the whole person, making decisions based on all types of therapies, not just Western medicine, but worldwide medicine and treatments that involves the person lifestyle as well.
