Which of the following is NOT true of proteins? * a. They are obtained from food.

b. They are a component of spider webs.

c. They supply the building blocks needed to repair tissues.

d. They are the main source of energy for cells.

B because all the other statements are true for proteins

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.

which fault and or fold did you find most difficult to diagram