The best sentence for summarizing this passage is:
T<span>he emperor rewards his subjects for jumping over and under a stick.
</span>
They are destroyed because t<span>he companies need to keep prices up</span>
Answer: Cell.
Explanation: atoms to molecules, cells, tissues, organs, organ systems, organisms
Assuming you meant explanatory text and not exclamation text, the answer would be brackets. For example, say your quotation is "She wrote the book." If you are quoting this directly in a paper, you want your audience to know who "she" is. So, you use brackets, and write the following: "[J.K. Rowling] wrote the book." Hope this helps.
Whats the play you’re talking about?