Answer:
They had acquired resistance to many diseases
Article I, Section 8, Clause 8, of the United States Constitution grants Congress the enumerated power "To promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries."
All highlighted examples show how Herbert Hoover (1874-1964) believed that once the federal government started to take directly participate in the economic system the inevitable outcome would be the loss of freedom.
In the first and second examples he is saying that once the government starts to take part, it goes all the way into the private lives of individuals which would be an attack against the basis of freedom.
Hoover thought like this because for him freedom only exists in the private life when it's kept away and separate from the government.
The third and fourth examples have the same meaning as the priors only now he is talking specifically about economics. He believed the problem of the Great Depression should be figured out by private businesses and the government should only cushion the situation.
<span><span>Persuading Justinian to stay in the capital city of Constantinople during the Nika Revolt. </span><span>Supporting women's rights.</span><span>Served as one of Justinian's advisors. </span></span>
