Which is the correct representation of energy flow through an ecosystem?

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.

Describe a desert community where there are fewer producers than consumers.

Can anybody me with this? a single egg is a(n): it's not ovary. ovary ova ovum yolk