Which parts of the membrane would help a large carbohydrate molecule enter the cell?
A. Phosphorus groups
B. Enzymes
C. Globular proteins
D. Fatty acids

What happens when a magniseum ion ia atracked to a chlrene ion

List two modern organisms that have pentameral symmetry

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.