What were the major achievements during the paleolithic ?

The major achievements during the Paleolithic, Evolution of Human Species; Development of language,  Stone Tools, Pebble Tool Tradition, or Hand-Axes, and the Use of Fire,  Knives, Spears, Hunting in Groups. Cultures began to develop  that included goddesses,  cave paintings. The greatest achievement of humans in the Paleolithic  Era, was the migration to all continents, except Antarctica.

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the answer is a) high entry costs

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".