Describe in words the species richness and species evenness of ecosystem A and B above

Identify the missing parts of the carbon cycle

Anton created a chart listing different types of materials. which best complete the chart?

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.