Answer:
Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A mutation in a single gene causes the body to produce thick, sticky mucus that clogs the lungs and blocks ducts in digestive organs.
B. allowed freedom of speech
A. freed the serfs
Answer:
We need context, but it's typically something along the lines of competition makes people improve to stay afloat
Answer:
A scandal involving an illegal break-in at the Democratic National Committee offices in 1972 by members of President Nixon's reelection campaign staff. Before Congress could vote to impeach Nixon for his participation in covering up the break-in, Nixon resigned from the presidency.
Explanation:
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