Which of the following is the most efficient substance to complete cellular respiration? on
a. sugars
b. fats
c. proteins
d. nucleic acids

People who exercise for an hour may have lower cholesterol levels. is that a statement? a law? or a hypothesis?

Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls

Depending on the organism the number of in a cell may change