Each group contained 25 cattails. All of the groups were grown in the same type of soil, they all received the same amount of light, and they were all kept at the same
Cooking at a constant oven temperature of 300Â°F (160Â°C), a 5- to 8-lb standing rib roast will take 17-19 minutes per pound for rare, 20-22 for medium rare, 23-25 minutes for medium, and 27-30 minutes for well done.ow long and at what temperature should I cook a beef roast in the oven? Roasting is a great cooking method for a large, tender cut of beef  such as a rib or sirloin roast.
Check the internal temperature of the roast as it nears its completion time. Beef, lamb or pork should register between 125 and 130 degrees Fahrenheit for rare, between 130 and 140 degrees for medium rare and about 140 to 145 degrees for medium.Cook poultry to an internal temperature of about 165 degrees Fahrenheit.Depending on how you want the roast done, increase the oven's temperature to 500 degrees about 15 minutes before it reaches its final temperature. Roast it at the higher temperature for another 10 minutes for a browned and crunchier crust.se a Dutch oven or a roasting pan. The key is to allow the meat to cook gradually. Slow cooking is more appropriate for beef, pork and lamb than it is for boneless poultry, though thighs and leg pieces work well with this method.