The correct answer is methylation.
This process refers to the addition of methyl groups to the DNA molecule, when the activity of such DNA segments is slightly altered. The more we age, the less methylation there is, which is why the genes of the elderly are different from those of young people.
They are referred as medically indigent. It is where a person does not have or acquire any health insurance to cover or does not acquire any or cover health care coverage. With this, it enables them to have a lack in paying their bills in medical care for they don't have enough coverage to pay for the medical care that they used or going to use.
The correct answer to this open question is the following.
Existentialism, anti-colonialism, and the quest for personal freedom influenced the landmarks of the last fifty years in that they were the dominant concepts that supported Neoliberalism, as the imperative economic system in modern western societies.
During these last fifty years, those concepts shaped the thinking of corporate America. An economic and political system that promoted free market, where corporations became so rich, countries signed free trade agreements, multinational companies opened branches in many third world companies, and unfortunately, it never impacted in a positive way to the working class, just benefited the rich people.
That is why today we see so many protests and demonstration in many countries, including the US, where people are demanding drastic changes after the US Crisis of 2008, when the federal government decided to support and rescue the big bankers and corporations, instead of supporting the interests of the common American citizen.
Answer: Serotonin is likely in short supply
Explanation: serotonin is a neurotransmitter produced by nerve cells that is involved in depression, appetite, and is crucial in maintaining a sense of well-being, security, etc. It is called the happy chemical because of it involvement in making one happy. An imbalance influences the mood of an individual.
Plain is flat ground
Plateau is elevated flat ground