## Design an experiment to answer this question.

The digestive tract of newborn chicks is free of bacteria until, for example, they eat food that has been exposed to the feces of adult chickens. The ingested bacteria establishes a population in the digestive tract that is beneficial for the digestion of food. However, if Salmonella are present in the adult feces, this bacterium, which can be pathogenic for humans who ingest it, may become established in the digestive tracts of the chicks. To eliminate the possibility that Salmonella might become established, should farmers feed newborn chicks a mixture of harmless known bacteria from a lab culture, or a mixture of unknown fecal bacteria from healthy adult chickens? Design an experiment to answer this question.

### what is done to convert the baby’s weight to kilograms?

18. A newborn baby weighs 7 lb 8 oz (seven pounds and eight ounces). If 1 lb = 0.454 kg, what is done to convert the baby’s weight to kilograms?….

### What is meant by a “vector” quantity?

26. What is meant by a “vector” quantity?   A. One that can be measured using a scale. B. One that is defined by a magnitude. C. One that needs….

### Which of the following is equivalent to 0.01 L?

35. Which of the following is equivalent to 0.01 L?   A. 100.0 mL B. 0.1 mL C. 1.0 mL D. 10.0 mL 1. What can be correctly said of….