Answer:
oesophagus, stomach, small intestine, large intestine
The lower group suffers the most due to having little medical treatment because the people of lower groups don't have enough money to provide themselves with the best treatment.
Answer:
Cardiorespiratory fitness is the ability of the cardiorespiratory system to supply nutrients and oxygen to the body during sustained physical activity without fatigue. Endurance is a factor used to measure physical fitness. Cardiorespiratory fitness is the ability of the heart and lungs to function efficiently and effectively. Endurance refers to your body's physical capability to sustain an exercise for an extended period.
Explanation: hope this helps!
If there were a fire, explosion, or bomb threats in schools, for example, are required to evacuate but if it's a sniper or shooter then they do a lockdown. Because if the shooter is on the outside and they decide to evacuate then they could get shoot so most schools and places do lockdowns.
So the answer would be a sniper. I hope this helps!