The most available energy and biomass exists at the first tropical level and the lowest level of the food pyramid: the producers in the form of algae and coral organisms. In a food chain, energy enters through solar energy through produces.
i JUST finished it and i thought it was B, but that's wrong. trust me guys...it's C!!!!! don't get fooled by the first answer. oh and happy early valentines day!!!
I'm new at this but i hope this helps you all!! <3