Which of the following is the  most basic? water, lemon juice, cola, ammonia

What is called the "building block" of life?

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?