What would you use to measure an amount of solid sodium chloride(NaCl) crystals to add to a 30 mL solution? A. 10 ml graduated cylinder.
B. Scale that can weigh up to 250 lbs.
C. Triple Beam Balance that measures to the nearest 0.1 grams.
D. Spectrophotometer that measures between 100 and 900 nanometers.

Option C, Triple Beam Balance that measures to the nearest 0.1 grams

Explanation:

A Triple Beam Balance can measure  mass of substances very accurately

For this case,  a measurement device is required which can measure the mass of small quantity of salt for dissolving in 30 ml of solution.

A graduated cylinder measure volume so this would not help. A Spectrophotometer measures the intensity of light so this would not help. A Scale that can weight up to 250 lbs would not work for this case as small weight is to be measured.

Option D would be correct

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.