Select the correct location on the image. During heart surgery, red blood cells are damaged. When the blood passes through the lymphatic system, these damaged red blood cells are trapped and broken down by macrophages. In which organ in the lymphatic system does the breakdown of damaged red blood cells take place?

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.