A commercial classification system such as the one presented in this chapter shows us the in which the grower will sell the product, rather than showing the plant’s biological relationships. Fill in the blank

List five ways we are indebted to phytoplankton

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.

How are fossils most commonly formed