To keep bacterial levels low, store ground beef at 40 Â°F (4.4 Â°C) or below and use within 2 days, or freeze. To destroy harmful bacteria, cook. ground beef to a safe minimum internal temperature of 160 Â°F (71.1 Â°C).
Orcadian: Orcadians - Wikipedia, the free encyclopedia. Basically, the descendants of Picts, Scots, and Vikings. Shovel Teeth: http://3.bp.blogspot.com/-A9ipYvA1R_...nt+line+up.gif. They have bulbs at the top, and look sorta scooped out in the middle, hence why they're called shovel teeth.
The Ordovician /ÉrdÉËvÉªÊÉn/ is a geologic period and system, the second of six of the Paleozoic Era, and covers the time between 485.4 Â± 1.9 and 443.8 Â± 1.5 million years ago.It follows the Cambrian Period and is followed by the Silurian Period.ife continued to flourish during the Ordovician as it did in the Cambrian, although the end of the period was marked by a significant mass extinction. Invertebrates, namely molluscs and arthropods, dominated the oceans.