The answer is B. Cholera
The other options are caused by a virus. Cholera was caused by bacterium Vibrio Cholera. The classic symptom of cholera is diarrhea that lasts for a few days. It could result in life threatening dehydration and electrolyte imbalance
Cholera is infected between 3 - million people worldwide, while it's considered as a pandemic, it rarely happens in a developed country like the U.S.A.
I hope I helped! =D
Hmm yes I think your right dolls are pretty creepy Cameron
usually clear blue or dark green
The frequency of the sickle cell allele in areas where malaria is introduced will increase and it will be advantageous.
When a person is heterozygous for sickle cell anemia, it means it has one abnormal allele of the hemoglobin beta gene but doesn’t express the disease (like homozygous person).
On the other hand, a person heterozygotes for sickle-cell trait has a selective advantage in environments where malaria is present.
Answer:
Polycythemia Vera
Explanation:
Polycythemia Vera can be described or known to be a type of blood cancer. And its effect is that, it makes the bone marrow to make or produce too many red blood cells, which can thicken the blood, slowing its flow, and can cause serious problems, such as blood clots, strokes, weakness among others.
Some of the symptoms of Polycythemia vera are
* Headaches, dizziness, and weakness.
* Shortness of breath and problems breathing while lying down.
* Feelings of pressure or fullness on the left side of the abdomen due to an enlarged spleen (an organ in the abdomen)
* Double or blurred vision and blind spots.
In conclusion, it should be understood that there is no cure for polycythemia vera. And treatment only focuses on reducing the risk of complications.
