Dr. James isolated Staphylococcus aureus, a type of bacteria, from the leg wound of a ten-year-old boy. He suspected these bacteria would grow better at body temperature than room temperature (72°F), but thought that he should collect data to support his thinking. Dr. James introduced the same number of Staphylococcus bacteria into each of six test tubes containing the same type and amount of nutrient broth. Three test tubes were incubated at 98.6°F (Group 1), while three test tubes (Group 2) sat at 72°F. After 24 hours, Dr. James compared the turbidity (indicative of growth) of all six tubes and rated each on a scale of 0 - 4. 0 indicates no turbidity (no growth), while 4 indicates high turbidity (high growth). The following data were collected:
src="https://sciemce.com/media/4/ppg__tttt0823190712__f1q553g1.jpg" alt="" style="vertical-align: 0.0px;" height="274" width="486" />Choose which of the the following statements is a hypothesis for an experiment.
A. Based on the data collected during the experiment, it is confirmed that S. aureus grew better at room temperature.
B. S. aureus grew equally well at room temperature and at body temperature.
C. Based on observation, it is predicted that S. aureus will grow better at body temperature than at room temperature.
D. Based on the data collected during an experiment, S. aureus grows better at body temperature than room temperature.
Answer: C
Business
src="https://sciemce.com/media/4/ppg__tttt0823190712__f1q553g1.jpg" alt="" style="vertical-align: 0.0px;" height="274" width="486" />Choose which of the the following statements is a hypothesis for an experiment.
A. Based on the data collected during the experiment, it is confirmed that S. aureus grew better at room temperature.
B. S. aureus grew equally well at room temperature and at body temperature.
C. Based on observation, it is predicted that S. aureus will grow better at body temperature than at room temperature.
D. Based on the data collected during an experiment, S. aureus grows better at body temperature than room temperature.
Answer: C
You might also like to view...
To inspire innovation, Jinyuan encourages his employees to devote one afternoon a month to work on pet projects, just to spend time in the lab experimenting and thinking freely. He is acting in the ______ role.
A. entrepreneur B. disturbance handler C. resource allocator D. negotiator E. liaison
Which of the following approaches to job design has roots in human-factors literature?
A. Perceptual-motor approach B. Mechanistic approach C. Scientific management approach D. Biological approach E. Motivational approach
If a table contains any LOB columns, client tools such as SQL Developer cannot display the images, however, the GETLENGTH function can be used to confirm a file was loaded into the LOB column.
Answer the following statement true (T) or false (F)
A logical representation of database data, called the data model, is constructed by developers after building a database.
Answer the following statement true (T) or false (F)