The concentration and size of boxes the same at all locations is not the same size. The deaths due to cholera vary depending upon the location. The relative sizes represents that died at that certain spot.
Explanation:
The black boxes represent relative numbers of death due to cholera. Cholera is referred to as a disease of poverty because of the lack of social development in the areas in which it occurs. Crowded camps are fertile ground for a cholera outbreak. Other humanitarian crises including flooding and earthquakes, civil unrest or war that causes disruption of water and sanitation systems.
Proteins on the boood determine a person’s blood type. antibodies( i’m not completely sure, i haven’t done this yet in bio) in the blood attack foreign blood not compatible with the antigens on the blood
I don't have enough information but it could be natural selection or mutations.
Patent ductus arteriosus occurs when the normal fetal circulation conduit between the pulmonary artery and the aorta fails to close and results in increased pulmonary blood flow. The clinical manifestations of patent ductus arteriosus include; Murmur; wide and bounding pulse pressure, Asymptomatic Heart failure.
I THINK THE ANSWER IS EITHER A OR C
HOPE THIS HELPS
