One of your patients visited your clinic because she is experiencing the following symptoms:

Severe aches in muscles and joints
Pain around the eyes
Weakness
Warm, flushed skin
Headache
Dry cough
As an experienced doctor, you quickly recognize that this patient has influenza (flu). You prescribe rest, plenty of fluids and medicine to relieve the symptoms. You tell the patient, she will probably feel bad for about a week to 10 days.

A month later this same patient returns to your office with the same symptoms as before. The patient claims that the flu came back and that she must have never fully recovered.

As the patient's physician, how would you most likely explain this?

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a. one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b. one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c. one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.