Question: Which of the following statements is true of biomagnification? Need Assignment Help? Answer Unselected Biomagnification is not an environmental problem. Unselected Biomagnification is more likely to occur for compounds that are easily excreted by consumers. Unselected Biomagnification is only a problem in terrestrial environments because the ocean dilutes toxins to a negligible level. Unselected The concentration of toxin can more than double at each level of the food chain.