The organisms in a food chain are listed in order of trophic level from left to right.
plant
grasshopper
mouse
snake
based on the food chain, if a hawk acquires 50 calories of energy, how much energy did the gra
500 calories
5,000 calories
50,000 calories
500,000 calories

a community that experiences major changes undergoes progress

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.

prothallium

explanation: