Excretion is the process of . A. exchanging carbon dioxide for oxygen. B. removing metabolic wastes from the body. C. pumping blood throughout the body to supply nutrients and oxygen to cells. D. breaking food down into nutrients that can be absorbed.

Answer asap 50 points which of the following distinguishes the soil composition of grassland? 1. the soil supports large trees with thick, long roots, so horizon b needs to be deep enough to sustain larger flora. 2. the soil supports large trees with thick, long roots, so horizon a needs to be deep enough to sustain larger flora. 3. the soil supports small plants and shrubs with short roots, so horizon a needs to be deep enough to sustain smaller flora. 4. the soil supports small plants and shrubs with short roots, so horizon b needs to be deep enough to sustain smaller flora.