Somebody whose parathyroid is not functioning properly might suffer from kidney stones or osteoporosis, among other symptoms.
Hope that helped you.
What experiment though lol
Urban people change their environment through their consumption of food, energy, water, and land. And in turn, the polluted urban environment affects the health and quality of life of the urban population. ... For example, urban populations consume much more food, energy, and durable goods than rural populations.
The third level, secondary consumers.
