All changes Position B: Once the food has been broken down, it moves down the esophagus using gravity and smooth muscle tissue. It ends up trapped inside the stomach by a sphincter muscle. 2. Is this a mechanical digestion? Chemical digestion? Both?

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

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what the squwock

explanation:

it takes hundreds of years to become stable.

if you have another question lmk.

the real answer is b. scintillation counter