Enzymes and hormones are mostly molecules.
carbohydrate-based
lipid-based
protein-based?

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.

Is there any solid scientific evidence that humans have been cloned?

All phases of matter may have a fixed mass