1. There isnt enough man power
2. Not enough recorces
3. Didnt have technology unlike now
The native Americans already had the first 3 items. The British brought horses to the new world and the native Americans used them a good bit Civil War and after.
Answer:
Weather patterns are a common cause in barometric pressure drops. When low-pressure weather systems move in over a certain area, not only is pressure in the atmosphere shifted, but it causes the barometric pressure reading to drop. A low-pressure system indicates that low-pressure air rises and begins to cool.
Explanation:
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Explanation:
According to my research on studies conducted by various medical professionals, I can say that based on the information provided within the question the health care provider will tell you what the Western Blot measures. This test is a more sensitive assay that looks for any antibodies to specific viral antigens within the body.
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