The pyramid of biomass usually has a more gentle slope than the pyramid of numbers because organisms at successively higher levels in the pyramid tend to be larger than those below 由于在生物量金字塔中,那些依次位于较高营养级上的生物体往往大于较低营养级上的生物体,所以生物量金字塔通常具有相对于数量金字塔较为缓和的坡度。