Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Example Input: Question: What changes the chemical composition of a substance and can only occur through a chemical reaction? Answer: chemical changes
Example Output: Pure substances, such as compounds, can be separated through chemical changes. Chemical changes change the chemical composition of a substance and can only occur through a chemical reaction.

Example Input: Question: The process in which materials move depending on their heat relative to nearby materials is known as what? Answer: convection
Example Output: In convection, materials move depending on their heat relative to nearby materials.

Example Input: Question: What contain organelles common to other cells, such as a nucleus and mitochondria, and also have more specialized structures, including dendrites and axons? Answer: neurons
Example Output:
Figure 16.19 Neurons contain organelles common to other cells, such as a nucleus and mitochondria. They also have more specialized structures, including dendrites and axons.