Fats are biomolecules, made up of hydrocarbon compounds (compounds made up of carbon and hydrogen). Examples of fats include triglycerides, cholesterol, and phospholipids. Fats are important for the body as they are major components of cell membrane or plasma membrane along with some protein and carbohydrate molecules.
Fats are among the three major nutrients in food, other being proteins and carbohydrates.
The body uses fat as a source of fuels, and fat is the major storage form of energy in the body.
Fat has other function such as insulation and protection of vital organs such as the heart and the lungs.
Fats also acts as chemical messengers helping proteins carry out their functions. Fats are also major components of the cell membrane which regulates materials in and out of the cell.
Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms.
