Discuss multicellular organisms can be made up of billions of cells. How do you think having specialized cells is an advantage for a multicellular organism

In multicellular, there some specialized cells which performs a particular function. In unicellular organisms, one cell perform all activities of the cell such as excretion, reproduction etc. But in multicellular organisms, some cells perform excretion, some cells help in muscle building which is responsible for movement and some other cells do the job of reproduction in the body of organisms. So specialized cells are advantage to multicellular organisms.

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.