What was the yellow fever

Explanation:

Yellow fever is a viral infection spread by a particular type of mosquito. The infection is most common in areas of Africa and South America, affecting travelers to and residents of those areas. In mild cases, yellow fever causes a fever, headache, nausea and vomiting. But yellow fever can become more serious, causing heart, liver and kidney problems along with bleeding.

Symptoms

Acute Phase - This is the initial stage of the infection with symptoms of

Fever

Headache

Muscle aches

Sensitivity to light

Nausea, vomiting or both

Loss of appetite

Dizziness

Toxic phase

After 3-4 days of acute phase, the symptoms disappear and most of the cases recover at this stage. Toxic phase is when the  symptoms recur after a day or two. During the toxic phase, symptoms are more-severe and life-threatening, these can include:

Yellowing of the eyes (jaundice) and skin

Stomach ache and vomiting

Reduced urination

Slow heart rate

Liver and kidney failure

Seizures

Yellow Fever Is What you get if you watch too much Simpsons!

Explanation:

the neolithic revolution began the era of permanent societies, the reliance on the limited amount of land gave way to political organization and this political organization caused social organization which was divided by amount of property and power.

the neolithic revolution (new stone age) was the first agricultural revolution. it was a gradual change from nomadic hunting and gathering communities and bands to agriculture and settlement. this period is described as a "revolution" because it changed the way of life of communities which made the change.

sentence:

let´s farm and domesticate these animals so we do not be hunting in the woods all the time