What should an ecologist measure in order to construct a pyramid of biomass for an ecosystem? A. the biomass in each trophic level of the food web
B. the total mass of all the organisms in a representative area of the ecosystem
C. the total mass of all the organisms in the ecosystem
D. the number of organisms in each trophic level of the food web

C-The total mass off all the organisms in a representative area of the ecosystem.

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.