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.

[EX Q]: Question: Organisms cannot live alone, needing other organisms to survive; what is this relationship called? Answer: interdependence
[EX A]: Organisms are not independent, they are interdependent . They cannot live alone; they need other organisms to survive. The same is true for species. All species need other species to survive.

[EX Q]: Question: What are genes that are close together on the same chromosome called? Answer: linked genes
[EX A]: Linked genes are genes that are close together on the same chromosome. Linked genes are inherited together.

[EX Q]: Question: What are the "code words" of the genetic code? Answer: codons
[EX A]:
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?.