A environmental scientist buys 20 gallons of oil eating bacteria to help remediate an area affected by an oil spill. The volume of water the scientist wants to cover with this bacteria is 5 ft³. What volume of water can the scientist cover with the bacteria she purchased? (1 gal = 0.13 ft³)

2.6  

Explanation:

Using the conversion factor:

1 gallon = 0.13

Therefore,

20 gallons = 20 x 0.13

       = 2.6‬  

This means that only 2.6   out of the 5   total volume of water the scientist wants to cover can actually be covered by the bacteria that was purchased.  

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.