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 is a simple machine that consists of a rope wrapped around a grooved wheel? Answer: a pulley
Example Output: A pulley is a simple machine that consists of a rope wrapped around a grooved wheel. Pulleys are generally used to lift a load.

Example Input: Question: What are molecules that the immune system recognize as foreign to the body? Answer: antigens
Example Output: The average kinetic energy of atoms (each of mass and average speed ) in a gas is related to the temperature of the gas, measured in Kelvin. The Boltzmann constant is a constant of nature, equal to.

Example Input: Question: What do scientists believe are the oldest eukaryotes? Answer: protists
Example Output:
Scientists think that protists are the oldest eukaryotes. They most likely evolved from prokaryotic cells, as explained by the endosymbiotic theory. This theory is well-supported by evidence.