For many years, the United States maintained an embargo on Cuba. What was the purpose of this trade barrier?

You are a member of the jury for a murder case. the prosecution has presented dna evidence linking the defendant to the crime scene. the defense claims that dna evidence using str analysis with 13 markers is not sufficient to reliably distinguish between people. what do you think? a. the defense is right. str analysis with 13 markers gives a 1 in 1 million chance of two people having the same pattern, leaving a reasonable doubt. b. str analysis is not sufficient. the defendant's entire genome should be sequenced. the prosecution will have to consult a genomic library to make sure their dna evidence is valid. c. the prosecution is right. str analysis with 13 markers gives a 1 in 10 billion or greater chance that two people will have the same pattern. this person was at the crime scene. d. dna evidence is not generally accepted by legal experts.

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?

Voters commonly condemn politicians for being insincere, but politicians often must disguise their true feelings when they make public statements. if they expressed their honest views—about, say, their party's policies—then achieving politically necessary compromises would be much more difficult. clearly, the very insincerity that people decry shows that our government is functioning well. which of the following, if true, most seriously undermines this reasoning? (a) achieving political compromises is not all that is necessary for the proper functioning of a government. (b) some political compromises are not in the best long-term interest of the government. (c) voters often judge politicians by criteria other than the sincerity with which they express their views. (d) a political party's policies could turn out to be detrimental to the functioning of a government. (e) some of the public statements made by politicians about their party's policies could in fact be sincere.