Unsure of the page number, but.. The word, “aloof” in the book, “Mice and Men”, can be found on chapter 4.
All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism.
1.) The cell wall protects the cell by providing support and maintaining the cells shape.