What is the flow of energy through a food chain?

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

Select the correct answer from each drop-down menu. the lac operon in e. coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

This is the nitrogenous base only found in rna