Because it depended on a limited resource. When fur traders and other Europeans entered the scene the demand for buffalo outweighed the supply choking off a vital resources for the Plains tribes.
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Vulnerability
His vulnerability, as far as I know, is immortal women.
A social system with a reliable food source and with established laws, customs, and job specialization. Source: Harcourt School Publishers Thank You for your time and cooperation.
Some common critiques of Brene Brown's work on vulnerability and shame include concerns about the lack of diversity in her research samples, the oversimplification of complex psychological concepts, and the potential for her message to be seen as individualistic rather than addressing systemic issues.
what a vulnerability of web based application
Turtle felt a strong attachment to her braid, viewing it as a symbol of her identity and connection to her heritage. It was a source of pride for her, representing her individuality and the love from her family. However, she also experienced moments of vulnerability and conflict regarding its significance, especially when faced with societal pressures and expectations. Overall, her braid was a complex emblem of both strength and struggle.
vulnerability
Whether it is a vulnerability would be debatable, although it seems to be doing just fine depending on your perspective. Coffee being "omnipresent in daily life" would not be an argument for its vulnerability, however.
If the primary source is AC, then that's the job of a transformer. If the primary source is DC, then doing that requires considerably more complex electronics.