pregnant women, fetuses, and neonates are often considered vulnerable categories of subjects. additional protections are provided through regulation, however, the protections are meant to be inclusive and not exclusive of pregnant women in research.

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

Some european explorers sailed west looking for the passage to india

If we can't separate our civilized self from our savage self which will take over and why