We now know that they have unique physical, chemical, and genetic traits that set them apart from plants and other eukaryotes. For example, the cell walls of fungi are made of chitin, not cellulose. Also, fungi absorb nutrients from other organisms, whereas plants make their own food.
Answer: Nutrition
Explanation: Nutrients are the essential nourishments for growth and the maintenance of life.
I believe it’s your head since it has more friction