Felicia wants to follow the "check your steps" rules for food safety. when she prepares high-risk foods, she avoids cross contamination, cooks raw foods to their safe internal temperatures, and chills leftovers within 30 minutes after serving them. after eating one of her meals, felicia and her dinner guests developed a food-borne illness. based on this information, which step did she fail to take? a. clean b. pasteurize c. irradiate d. salt

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards. the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Which of the following is required of a new drug?me

Ruby is conducting an investigation. an advantage of her design is that she can use a large range of variables, with that she can not be sure that one variable is the cause of another. what kind of investigation is ruby most likely conducting?