D. Farming
Farming made the first villages possible.
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Answer:
The United States was not the only or even first country to end slavery.
Explanation:
In 1862, President Abraham Lincoln issued the Emancipation Proclamation declaring “all persons held as slaves… shall be then, thenceforward, and forever free,” effective January 1, 1863.
The Greek physician <u>Herophilus </u>noted that separate spinal nerves connect to each region of the body.
Herophilus was a Greek physician who pioneered the field of anatomy in the 4th century BCE. He dissected hundreds of human cadavers to understand its anatomical structure.
His work is recorded in his books <em>On Pulses</em> and <em>Midwifery</em>. Galen also quoted him extensively.
Among his findings, Herophilus noted that separate spinal nerves connect to each region of the body. By studying the flow of blood, he was able to make a distinction between the arteries and veins.
He also studied the human brain, which he believed is the locus of the intellect, and differentiated between the cerebrum and cerebellum.
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in <u>naturalistic observation </u> the researcher spends extensive time with respondents and carefully records their activities, conversations, gestures, and other aspects of everyday life.
<h3>What is naturalistic observation..??</h3>
Naturalistic observation is a research method that involves observing subjects in their natural environment. The goal is to look at behavior in a natural setting without intervention, it is a qualitative research method where you record the behaviors of your research subjects in real world settings.
'Naturalistic research is important for getting research results that aren't impacted by the researchers themselves. Even a well designed study can have problems with subjects being aware of observation, or being in an unnatural environment, which could skew results."
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