Hey there! The answer to your question is B. surface waves!
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Answer:
Option B, Stomach because of the extensive breakdown of carbohydrates and fats.
Explanation:
Food is mechanically and chemically digested in the stomach by using enzymes, hydrochloric acid and peristalsis. Polymers of proteins, lipids and carbohydrates are broken down to simpler molecules such as amino acids and glucose for adequate absorption by microvilli in the small intestine.
<h2>Regulation </h2>
Explanation:
Operons are the structural unit of gene organisation
If product of regulatory gene binds to the upstream of promoter and induce expression of operon genes, system is called positively controlled whereas if product of regulatory gene binds to the operator and prevents expression of operon genes, system is called negatively controlled
An inducer binds to the repressor and induce conformational changes causing dissociation of repressor from operator therefore in absence of repressor RNA Polymerase binds to the promoter and starts transcription of genes
In some cases, A co-repressor binds to the repressor and activate it as a result activated repressor binds to the operator and prevent binding of RNA Polymerase thus blocks transcription of structural genes
Just some up everything you wrote into one paragraph