1 Beef should be cooked to an internal temperature of 165 degrees, poultry to 180 degrees, pork to 170 degrees, and ground beef to 170 degrees.  Keep foods out of the temperature danger zone â Once items are cooked, it is important to keep them warm or to refrigerate them promptly.
Lettuce (Lactuca sativa) is an annual plant of the daisy family Asteraceae.It is most often grown as a leaf vegetable, but sometimes for its stem and seeds.oday, the majority of lettuce is grown for its leaves, although one type is grown for its stem and one for its seeds, which are made into an oil. Most lettuce is used in salads, either alone or with other greens, vegetables, meats and cheeses.
LETTUCE. The common lettuce of the garden (Lactuca sativa crispa) is a tall, leafy, annual herb with a milky juice. At first the stem is very short and the foliage densely clustered near the ground, but later in the season a flower stalk, 2 to 4 feet high, appears.arly Growth. --Root development in lettuce takes place rapidly. When conditions for growth are very favorable, lateral branches begin to appear on the first 1 to 1.5 inches of taproot only 6 days after the seed is planted and when the cotyledons alone have unfolded.