Some organisms that normally live in pond water contain water pumps. these pumps continually pump water out of the cell. describe a scenario that might reverse the action of the pump.

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.