[Solved] A drop in basal metabolic rate is most likely to result from A) high testosterone levels. B) a semistarvation diet. C) erotic plasticity. D) excess leptin. Malnutrition: A condition resulting from a diet in which there is an insufficient or excessive intake of nutrients, leading to health problems. Midlife: A period typically associated with the middle ages of adulthood, often marked by a reevaluation of personal accomplishments and goals. Water Pollution: The contamination of water bodies, such as lakes, rivers, oceans, and groundwater, caused by harmful substances or microorganisms, which can negatively impact aquatic life and human health. Overpopulation: is the condition where the number of organisms exceeds the carrying capacity of their habitat, leading to environmental degradation and resource depletion.