Response would be correct, as in response to environment.
That is a codon chart on the right.
You want to put the amino acid sequence correctly. I can’t find it but I know that the t=a. You would change all the t’s to a. Then start from the middle and work your way out following the three letters in the sequence.
A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion. All molecules are not compounds. All compounds are molecules.