What are the key elements of cell theory?

A. All living things are composed of one or more eukaryotic cells.
B. Cells arise only from other cells.
C. The cell is the basic unit of life.
D. Spontaneous generation can occur under certain environmental circumstances.
E. Genetic material is passed from cell to cell during cell division.
F. Cells have essentially the same chemical composition.

A. all living things are composed of one or more eukaryotic cells

C. cells are the basic unit of life

E. genetic material is passed from cell to cell during cell division

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.