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.
Ulva: Sea lettuce. This is a small genus of marine and brackish water green algae. It is edible and is often called 'Sea Lettuce'. Species with hollow, one-layered thalli were formerly included in Enteromorpha, but it is widely accepted now that such species should be included in Ulva.here are about 100 species Ulva currently listed on AlgaeBase which is probably a considerable underestimate; nearly 600 names have been used, as this was one of the earliest genera of algae to be described (by Carl Linnaeus).