How would you buffer a solution that has a ph of 12

How can you approximate the number of calories required to keep you in energy balance?

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above