instruction:
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.
question:
Question: Metabolism is controlled by regulation of what? Answer: enzyme activity
answer:
8.5 Regulation of enzyme activity helps control metabolism.


question:
Question: What are the "code words" of the genetic code? Answer: codons
answer:
Reading the Genetic Code. The genetic code is read three bases at a time. Codons are the code words of the genetic code. Which amino acid does codon 2 in the drawing stand for?.


question:
Question: Mercury is small, rocky and covered with what objects? Answer: craters
answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
6. Mercury is small, rocky and covered with craters. Why?.


