In ecology, the number of people, other living organisms, or crops that a region can support without environmental degradation is known as: Human Density Profile Biomass Maximum Life Load Carrying Capacity A disease that affects a whole country or the entire world is known as a(n): crossdemic Pandemic Infestation Exodemic Following demographic transition (i.e. Stages 4 and 5 in the graphic above): High birth rates and high death rates result in a stable population High death rates overwhelm low birth rates and population decreases rapidly Low birth rates are matched by low death rates and population stays about the same High birth rates overwhelm decreasing death rates and population increases rapidly.