Fats, oils and waxes.
Actually there are four. They are carbohydrates,proteins,lipids and nucleic acids
you say there is three different kinds of volcanoes when there are six different kinds of volcanoes
"Lipids" is a very broad category of compounds which can contain far more than three different elements.
The three different kinds of fats are: Saturated Fats, Monounsaturated Fats, and Polyunsaturated Fats. Hope this is what you were looking for!
the three kinds of variables are independent,dependent and controlled
UnivalvesBivalvesCephalopods
Monounsaturated fats, polysaturated fats, and saturated fats.
the three kinds of triangle are iscoceles scalene and etc:
Fats, oils, and waxes are the three types of lipids.
Three different kinds of paints are generally used by artists, these are Watercolours, Oils and Acrylics.
Triglycerides, Phospholipids and Steroinds.
their is rRNA, tRNA, and mRNA