Bloodletting, a treatment devised centuries ago to restore the balance of humors, was accomplished with the use of leeches.
Bloodletting was divided into a two methods. It was  done by either  venesection and arteriotomy.
A localized method was also done by scarification done with cupping and leeches. 
Venesection was the most commonly used procedure and generally involved the vein at the elbow, but also many different veins could be used for this treatment.
The major instruments which were used for this technique were called lancets and leeches.
To know more about blood letting here:
brainly.com/question/19414306
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Answer:
Listeners can become lost
Explanation:
Informative speakers need to judge their audience before they speak. They need to know some facts about their listeners, where do they come from, from which background socially and ethnically, and they may want to know something about their religion or interests. This way they can judge the level of the audience's knowledge about the subject they will speak upon.
If the informative speakers overestimate the listeners' knowledge on a particular subjects, the listeners will become frustrated because they won't understand what the speakers are telling them. They may consider themselves to stupid or not knowledgeable enough to listen to this speech. After trying to understand, they give up in the end and <em>can become lost</em>, not understanding the speaker and the topic he speaks upon.
 
        
             
        
        
        
Hi Elyana29,
I found a link:
http://humanorigins.si.edu/research/climate-and-human-evolution/climate-effects-human-evolution
        
             
        
        
        
C. New ideas in human rights and democratic governments led to rebellions
        
             
        
        
        
Answer:
Salutary neglect is an American history term that refers to an unofficial and long-lasting 17th- & 18th-century British policy of avoiding strict enforcement of Enacted by laws, meant to keep the American colonies complying to England.