Please Help ! Look at the diagram. What type of cell is shown by number 5?

Plz ! ive been stuck on this forever

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.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.