Based on the question, the correct answer is "smaller pieces."
Explanation:
1. All types of matter, including living things, are composed of atoms. Atoms are the smallest units of matter that make up everything around us.
2. These atoms can combine to form molecules, which then organize themselves to create different substances and structures found in solids, liquids, and gases.
3. In the context of living things, cells are the basic structural and functional units. Cells are made up of various molecules like proteins, lipids, carbohydrates, and nucleic acids, all of which are made up of atoms.
4. Therefore, when we talk about all types of matter, including living things, being made of "smaller pieces," we are referring to the fundamental building blocks such as atoms and molecules that make up the diverse array of materials and organisms in the world.
