Monosaccharides are aldehyde or ketone derivatives of straight-chain hydroxy alcohols that have at least 4 carbon atoms.
true
false

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

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.

What is the key to the recognition of codominance?