Fact 1: Lipids may consist of fatty acids alone, or they may contain other molecules as well. Fact 2: Fatty acids are the building blocks of lipids. Given the two facts above, answer the question "What of lipids may contain other molecules as well?" with the following options: - empty spaces - big spaces - building blocks - small parts - solid, liquid, gas - Organic compounds - layers of fat - bioaerosols
building blocks