Which of these is a function of all cells? A. to absorb nutrients and gases from blood B. to extract energy from food to sustain life C. to produce food using water and carbon dioxide D. to give shape and structural support to an organism

What type of cell is produced after fertilization occurs and the gametes combines ?

In which layer do organisms on earth love?

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.