Which of the following statements is correct about the hierarchy of the taxonomic system currently used to classify organisms? Many different families of organisms belong to the same order
Many different orders of organisms belong to the same species
Many different classes of organisms belong to the same genus
Marvy different kingdoms of organisms belong to the same phylum

a- all cells come from pre-existing cells

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.