What level of protein should a basketball player in the off-season trying to gain muscle mass consume

Which are reasons cells undergo cell division?

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.

This is the nitrogenous base only found in rna