Apples, like all fruits, do contain amino acids, though in much smaller quantities compared to protein-rich foods such as meat, dairy, or legumes. Amino acids are the building blocks of proteins and play crucial roles in bodily functions, including muscle repair, hormone synthesis, and neurotransmitter function. While apples are not a significant source of protein, they still contribute to the diversity of amino acids in the diet. Moreover, apples are rich in vitamins, minerals, fiber, and antioxidants, making them a healthy addition to a balanced diet. To ensure adequate protein and amino acid intake, one should complement fruit consumption with a variety of protein sources.

Coil spinning employs the twisting of fibers into yarn, with an added step to create distinct "coils" or "beehives" within the yarn for a textured effect. To coil spin, you'll first need to spin a single yarn as your base. Then, using a spinning wheel or spindle, you'll ply this base yarn alongside a thread, holding the base yarn loosely to allow it to loop around the thread, forming coils. Tension and the rate at which you feed the yarn and thread through your fingers will determine the size and spacing of the coils. Experimentation is key, as different fibers and tension levels can produce varied and interesting results. Always finish by setting your twist with a warm wash to ensure the coils stay in place.

Polyester is not inherently a network polymer but rather a category that constitutes various types of polymers, including thermoplastics and thermosets. Typically, when people refer to polyester in the context of fabrics or plastics, they are usually talking about a specific type known as polyethylene terephthalate (PET). This kind of polyester falls under the category of linear polymers, characterized by long, chain-like molecules. Network polymers, on the other hand, have a three-dimensional structure of interconnected molecular chains. Some polyesters can be formulated to behave like network polymers when they are cross-linked into a three-dimensional network. This property is exploited in certain applications like coatings, resins, and plastics where enhanced material properties such as durability, heat resistance, and chemical resistance are required. Therefore, while not all polyesters are network polymers, certain types can be engineered to exhibit those characteristics through chemical processes.