What are two major public agencies that track the spread of diseases? a. the national institutes of health (nih) and the world health organization (who) b. the world health organization (who) and the centers for disease control and prevention (cdc) c. the centers for disease control and prevention (cdc) and the national institutes of health (nih)

Desiree has a scientific question that she wants to investigate. she has developed a hypothesis and method for her experiment. which step of scientific inquiry should desiree take next? desiree should present her findings to her teacher and classmates. desiree should collect data, which may support or refute her hypothesis. desiree should provide an explanation for her results.