For diffusion to occur, which condition must be met?

Where substance is produced during cellular respiration

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because

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.