Cell - tissue - organ - system Which statement best explains the diagram above?

a. People can survive without cells because they have systems
b. Cells grow and develop into organs
c. Systems are made of cells
d. Organs make tissues, and tissues make systems

Which statements are true of a scientific theory but not a hypothesis

What would most likely happen if a person increased the amount of saturated fat in his or her diet? the person's risk of cardiovascular disease would increase. the person's risk of cardiovascular disease would decrease. the person's bad cholesterol would decrease. the person’s good cholesterol would increase.

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.