You get the results of mrs. m’s blood tests and see that the osmolarity of her blood is higher than normal. what is the most likely explanation for the increased concentration of mrs. m's blood?

The correct explanation for high osmolatrity in Mrs M's blood is high percentage of particle than dilution. This mean blood and urine is more concentrated which result in more production of ADH (anti diuretic hormone)

Explanation:

Osmolarity is a test which determined the concentration level of particle and dehydration level in one body. Higher the percentage of  dilution of  blood more easy is the chance to move nutrient into the blood.  High concentration of blood make easy to throw out waste product move out of the body.

The correct explanation for high osmolatrity in Mrs M's blood is high percentage of particle than dilution. This mean blood and urine is more concentrated which result in more production of ADH (anti diuretic hormone)

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the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.