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.
Answer: the third one
Explanation:
They would have to help them because they are still people and citizens of the United States
Water is not made artificially, so when we get rid of water or pullute it, we are losing that natural recource, therefore making it limited.
Answer:
True
Explanation:
A discussion-based exercise requires that a safe check walk be made through the exercise arena