Aerosol cans contain a warning not to put them in a fire because they will explode. Describe why the can will explode when heated. Use the following words in your description: gas, particle, expansion, and pressure

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.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f