Insects, and some other invertebrates, exchange oxygen and carbon dioxide between their tissues and the air<span> by a system of </span>air<span>-filled </span>tubes<span> called tracheae. Tracheae open to the outside through small holes called spiracles. In the</span>grasshopper<span>, the first and third segments of the thorax have a spiracle on each side.</span>
“The foreign spies were discovered using wiretaps in different hotels.” is the correct option (#3)
Hello. As you have not informed the reading options that this question refers to, it is not possible that this question can be answered accurately. However, I will try to help you in the best possible way.
In order for you to be able to write a thesis statement, you must in a few lines summarize the central point of the text and issue a position on it. An example of this can be seen in a statement and thesis on the book "All the Bright Places" that says: "The book points to family neglect in relation to adolescents' feelings as an aggravation of childhood depression and the negative results that it can to tease."
<span>SparkNotes: The Kite Runner: Chapters 12–13</span>
