Why do the hairs on people arms raise

Many people try to eliminate fat from their diets. which is one reason it is necessary for humans to eat fat? a. eating fat is the fastest way to get energy. b. fat eliminates triglycerides from the body. c. saturated fats clear out the blood vessels. d. fat nerves transmit signals. , this is for apex in summer school.

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane

Which material is commonly used as a culture medium for living cells