What is a Primitive Solid? A primitive solid is a âbuilding block' that you can use to work with in 3D. Rather than extruding or revolving an object, AutoCAD has some basic 3D shape commands at your disposal. From these basic primitives, you can start building your 3D models.
Fats typically provide more than half of the body's energy needs. Fat from food is broken down into fatty acids, which can travel in the blood and be captured by hungry cells. Fatty acids that aren't needed right away are packaged in bundles called triglycerides and stored in fat cells, which have unlimited capacity.
They have important roles in our body including: 1  An energy source that gives us most the energy that our body needs; 2  Part of many proteins and fats (lipids) that our body needs for many bodily processes; 3  Providing nutrients for the good bacteria in our intestines that helps us digest our food; and.