Which one of the following is a characteristic of a metal?
a. conducts heat readily
b. changes the color of litmus paper to red
c. reacts with bases to produce salts
d. becomes negative when combined with other elements

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.