Well there are infact 2 walls. There is the atrial septum which separates right and left atriums. And there is the ventricular septum which separates the right and left ventricles.
I'm not quite sure if if it's asking you for two or one answer, but maybe writing both shall help.
I think the answer is how much money has been spent to fight the diseases caused by the mosquitos
Answer:
Pulmonary plague, septic plague and bubonic plague.
Explanation:
So, Yersinia pestis is a rod-shaped bacterium. This microorganism can affect humans through the flea Xenopsylla cheopis. Then, the disease can manifest in three ways: pulmonary plague, septic plague or bubonic plague.
Pneumonic plague is the form of the disease that infects the lungs and its symptoms begin abruptly two to three days after exposure to bacteria. Patients have a high fever, chills, fast heart rate and often severe headaches.
Another form of the disease is the septicemic plague and the infection spreads in the bloodstream. The most common symptoms are nausea, vomiting, diarrhea, and abdominal pain.
Finally, bubonic plague, or also known as the minor plague, is a milder form of the disease that affects the lymphatic system and its symptoms are swollen lymph nodes, fever, headache, and exhaustion.
The small intestine I believe
